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# -2cos x+square root of 3 = 0

solve the equation for 0 less than or equal to x less than 2 pie

# 4 sin x =-1+2 sin x

solve the equation for  0≤ x < 2 pie

# 2sec^2x(1-sin^2x)

Use the fundamental identities to simplify the expression

# cot^2x-cos^2x=cot^2x cos^2x

Verify the identity

# tan(pie/2-x) cot x / csc^2(-x)-1

use the fundamental identities to simplify the expression

# truiangles

A straight road leads from an ocean beach into the nearby hills. The road has a constant upward grade of 7°. After taking this road from the beach for a mile and a quarter, how high above sea level...

# Trigonometry Word Problem

a 7.5M Ladder is leaned up against a wall, what angle does the ladder make with the wall if the top of the ladder is 6.6m above the ground?

# Trigonometry Word Problem

The distance from a pebble to the base of a vertical cliff is 43m. The angle between the pebble and the top of the cliff is about 57 degrees. What is the height of the Cliff?

# Would someone help me answer this trigonometry math word problem and show my work for it? Thanks!

The value of a machine depreciates according to the function f(x) = 20000(1/2)x ,where x is the time in years from the purchase of the machine. What is it's value after 3 years?

# Can anyone help me answer these two trigonometry math word problems and show all my work for both?

1. The profit of an organization is calculated by the function P(x) = x2 - 4000x + 7800000, where x is the number of units sold. If the net profit is 3800000, find the number of items sold...

# Find all solutions in the interval [0,2pi): sin (cos x) = 0

Find all solutions in the interval [0,2pi): sin (cos x) = 0

# Definition of tangent

I need definitions

# given cos x=-3/4, with x in quadrant 2. find the remaining five trigonometric functions of x.

I have No idea on what to do.

# Solving trig identities

No restrictions on Θ.   2cosΘ-1=0

# i need to solve a trig equatiion

solve the equation on the interval 0≤Θ<2π . round answers to 2 decimal places   3sec2Θ=2tan2Θ+tanΘ+4

# Find the exact value of cos(u+v) given that sin u=5/13 and cos v = -45. Both u and v are in Quadrant II.)

Find the exact value of cos(u+v) given that sin u=5/13 and cos v = -45. Both u and v are in Quadrant II.)

csc2xtan2x-1

# Angle Through the Celestial North Pole Moves

At present, the north star Polaris is located very near the celestial north pole. However, because Earth is inclined 23.5 degrees, the moon's gravitational pull on Earth is uneven. As a result, Earth...