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Trigonometry

05/31/22

If cos x = 5/13 and sin x < 0, find sin (x/2) .

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Trigonometry Algebra 2 Precalculus

05/30/22

Evaluate cosθ when θ=π2.

Cosθ=

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Trigonometry Math Precalculus Maths

05/29/22

Given ΔABC with m∠B = 98°, a = 26, and c = 14, what is the measure of A?

Given ΔABC with m∠B = 98°, a = 26, and c = 14, what is the measure of A?A. m∠A = 26.4°B. m∠A = 55.6°C. m∠A = 52.3°D. m∠A = 29.7°

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Trigonometry

05/27/22

What are the larger of the triangle’s acute angles

In a right triangle, sin (2x + 1)° = cos (x - 10)°. Find the larger of the triangle's two acute angles.

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Trigonometry

05/27/22

If sin A=2/3, cos B=1/3, find (sec A)^2-(tan B)^2.

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Trigonometry

05/27/22

A farmer wishes to fence a field in the form of a right triangle. If one angle of the triangle is 43.2 degrees and the hypotenuse is 200 yd., find the amount of fencing needed.

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Trigonometry

05/27/22

If sin A=2/3, cos B=1/3, find (sec A)^2-(tan B)^2.

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Trigonometry

05/26/22

Write a sine function that has a midline of 4, an amplitude of 3 and a period of 2/3

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Trigonometry Precalculus

05/26/22

Establish the identity. tan v − 1 / tan v +1 = 1 − cot v / 1 + cot v

Which of the following statements establishes the identity?A. tan v - 1 / tan v + 1 = tan v - 1 / tan v + 1 x tan v + 1 / tan v + 1 = tan2v - 1 / (tan v + 1)2 = 1 - cot v / 1 + cot v.B. tan v -... more

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Trigonometry Precalculus

05/26/22

Establish the identity. 1 − sec θ / tan θ − tan θ / 1 − sec θ = 2 cot θ

Write the left side of the expression with a common denominator. Do not expand the numerator.? / tan θ(1 - sec θ).Expand and simplify the numerator by rewriting without any parentheses. ? - tan2θ /... more

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Trigonometry Precalculus

05/26/22

Establish the identity.−tan t + cos t / 1−sin t = sec t.

Write the left side in terms of sine and cosine. - ? + cos t / 1 - sin t.Add fractions from the previous step. Apply the appropriate Pythagorean identity to simplify the numerator.? / cos t(1 -... more

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Trigonometry Precalculus

05/26/22

Establish the identity. (6cosθ−7sinθ)^2 + (7cosθ+6sinθ)^2 = 85

Rewrite the left side by removing the parentheses.? + 49 cos2θ + 84 cos θ sin θ + 36 sin2θRewrite the expression found in the previous step by combining like terms.? (Do not factor.)Rewrite the... more

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Trigonometry Precalculus

05/26/22

Establish the identity. 4 cot u - tan u / cot u + tan u + 1 = 5 cos^2 u

Write the left side in terms of sine and cosine.?/? + 1 (Do not simplify.)Write the expressions in the numerator and denominator from the previous step as single quotients with the common... more

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Trigonometry

05/26/22

How many unique triangles are there if you are given 4 bits of info and can only use 3 at a time

I have 4 bits of infomation, 2 sides and 2 angles. 2cm, 10cm, 90 degrees and 60 degrees. I can only used 3 at once, so for example: 90 degrees, 2cm and 10cm and I have to arrange them in as many... more

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