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Trigonometry Answers

Trigonometric Functions
asked 2021-03-12

Find the solution $$\displaystyle{\sin{{Y}}}={\cos{{\left({Y}+{20}°\right)}}}$$

Trigonometric Functions
asked 2021-03-06

$$\displaystyle{4}{{\cos}^{{2}}{x}}−{3}={0}$$

Trigonometric Functions
asked 2021-03-06

Given the values for sin t and cos t, use reciprocal and quotient identities to find the values of the other trigonometric functions of t. $$\displaystyle{\sin{{t}}}=\frac{{3}}{{4}}{\quad\text{and}\quad}{\cos{{t}}}=\frac{\sqrt{{7}}}{{4}}$$

Trigonometric Functions
asked 2021-03-06

Given the values for sin t and cos t, use reciprocal and quotient identities to find the values of the other trigonometric functions of t. $$\displaystyle{\sin{{t}}}=\frac{{3}}{{4}}{\quad\text{and}\quad}{\cos{{t}}}=\frac{\sqrt{{7}}}{{4}}$$

Trigonometric Functions
asked 2021-03-06

Movement of a Pendulum A pendulum swings through an angle of 20∘ each second. If the pendulum is 40 inches long, how far does its tip move each second? Round answers to two decimal places.

Trigonometric Functions
asked 2021-03-02

How to prove the following: $$\displaystyle{{\tan}^{{2}}{x}}+{1}+{\tan{{x}}}{\sec{{x}}}={1}+\frac{{\sin{{x}}}}{{{\cos}^{{2}}{x}}}$$

Trigonometric Functions
asked 2021-03-01

Find the exact value of sin 60°.

Trigonometric Functions
asked 2021-03-01

Prove that $$\displaystyle{\text{sinh}{{\left({x}+{y}\right)}}}={\sin{{x}}}{\text{cosh}{{y}}}+{\text{cosh}{{x}}}{\text{sinh}{{y}}}$$

Trigonometric Functions
asked 2021-02-25

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