9,261 Answered Questions for the topic trigonometry

Trigonometry Math

12/08/21

Using words, explain any difference in the solving and solutions for the equations: sin(2x) = 0.4 vs sin(x) = 0.4
Don't need to actually solve, just list in words the differences
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Trigonometry

12/08/21

NEED ASAP!! let f(x)= x^4- 7x^3 +13x^2+3x-18. READ BELOW
f(x) = x4- 7x3 +13x2+ 3x -18. Given that 3 is a zero of f with multiplicity 2, solve the equation x4 -7x3 +13x2 +3x -18 =0 Use quadratic formula.
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Trigonometry

12/08/21

solve log x+ log (x+3) = 1

check all posible solutions
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Trigonometry

12/08/21

NEED ASAP!! Solve sin(2x + pi/6) = 1/2 on the interval [0, 2pi)
sin (2x + π/6 ) = 1/2 on interval. [0,2π)
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Trigonometry

12/08/21

Use a sum of angles identity to solve sin(2x) cos (x) +cos(2x) sin(x) =sqrt 2/2
sin(2x) cos(x) + cos(2x) sin(x) = √2 ‾‾‾2‾‾‾‾ (√2 over 2)
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Trigonometry

12/08/21

NEED ASAP! Write sqrt 25-x^2. as a trigonometric expression by making the substitution
x= 5sinθ where π/2 < θ < 3π/2 simplify as much as possible.
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Trigonometry

12/08/21

NEED ASAP! use a right triangle and a double angle formula to write tan(2 cos^-1 x) as an algebraic expression. simplify completely.
tan ( 2 cos-1 x)
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Trigonometry

12/08/21

NEED ASAP! write the following expression as a single logarithm with coefficient 1. simplify as much as possible.
1/3 ln (x+2)3+ 1/2 [ lnx - ln (x2+3x+2)2 ]
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Trigonometry

12/08/21

NEED ASAP! let f(x)=cos(2x). compute the exact value of the slope of the line passing through the points...
through the points (π/8 , f (π/8)) and (π/6 , f (π/6)). (π over 8, f (π over 8)) and (π over 6, f (π over 6))simplify as much as possible.
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Trigonometry

12/08/21

NEED ASAP! the difference quotient of a function f(x) is the expression f(x+h)-f(x)/h.
The difference quotient of a function f(x) is the expression f(x+h)-f(x) (f(x+h)-f(x) over h) ‾‾‾‾‾‾‾h‾‾‾‾‾‾‾Find the difference quotient of f(x) =... more
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Trigonometry Precalculus

12/08/21

Points A and B are separated by a lake. To find the distance between them, a surveyor locates a point C on land such than ∠ C A B = 48.3 ° . Find the distance across the lake from A to B.
How can I find this answer if B is 487m and A is 347m?
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Trigonometry Precalculus

12/08/21

Given the vector → u = ⟨ 5 , − 6 ⟩ , find the magnitude and angle in which the vector points (measured counterclockwise from the positive x-axis, 0 ≤ θ < 2 π )
This question still stumps me because I still don't know how to get the answer in my calculator.
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Trigonometry Precalculus

12/08/21

Plot the point whose polar coordinates are ( 3 , π ) .
How can I find the answer to this? I just don't know how to plot it after I get my answer.
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Trigonometry Pre Calculus

12/08/21

How do i solve this question
A biologist wants to know the width w of a river to properly set instruments for an experiment. From point A, the biologist walks downstream 100 feet and sights to point C (see figure). From this... more
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Trigonometry

12/07/21

SIN 180 DEGREES
USE THE DOUBLE ANGLE FORMULAS TO FIND THE EXACT VALUES OF THE FOLLOWING.
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Trigonometry

12/07/21

USE THE HALF-ANGLE FORMULAS TO FIND THE EXACT VALUE OF SIN 210 DEGREES.
USE THE HALF-ANGLE FORMULAS TO FIND THE EXACT VALUE OF SIN 210 DEGREES.
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Trigonometry

12/07/21

Question is below!!!
A 30 FEET LADDER IS LEANING AGAINST A BUILDING. IF THE LADDER MAKES AN ANGLE OF 30 DEGREES WITH THE GROUND , HOW FAR UP THE BUILDING DOES THE LADDER REACH?
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Trigonometry

12/07/21

FIND THE ARC LENGTH WITH r=10CM AND THETA EQUAL 45 DEGREES
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Trigonometry

12/07/21

My question is below. please answer!!!
A CIRCLE HAS A RADIUS OF 6 FEET. FIND THE AREA OF THE SECTOR FORMED BY CENTRAL ANGLE 150 DEGREES. ROUND YOUR ANSWER TO TWO DECIMAL POINT.( A= 1/2R SQUARE TIME THETA)
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Trigonometry

12/07/21

2SIN THETA PLUS SQUARE ROOT OF3 EQUAL ZERO
SOLVE THE EQUATIONS FOR ALL VALUES GREATER THAN OR EQUAL TO ZERO AND LESS THAN 360 DEGREES.
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Trigonometry

12/07/21

SQUARE ROOT OF 3 TIMES COT THETA PLUS 3=0
SOLVE THE EQUATIONS FOR ALL VALUES GREATER THAN OR EQUAL TO ZERO AND LESS THAN 360 DEGREES.
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Trigonometry

12/07/21

USING TRIGONOMETRIC FUNCTION VALUES OF 30 DEGREES, 45 DEGREES,AND 60 DEGREES, FIND THE EXACT VALUE OF SIN 75 DEGREES.
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Trigonometry

12/07/21

2COS THETA MINUS ONE EQUAL TO ZERO
SOLVE THE EQUATIONS FOR ALL VALUES GREATER THAN OR EQUAL TO ZERO AND LESS THAN 360 DEGREES.
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Trigonometry Mathematics Grade 11

12/07/21

Explain why there are exactly two angles between and that have the same tangent ratio.
Explain why there are exactly two angles between and that have the same tangent ratio.How does knowing the coordinates of some point on the terminal arm of an angle help you find the exact values... more
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Trigonometry Math Precalculus

12/07/21

Precal Trigonometry (please help)
Verify the identity.csc(x)-cot(x)=1/[csc(x)+cot(x)]Thank you!
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