If cos(θ) = -0.5 and angle θ is in quadrant 2, what are the values of sin(θ) and tan(θ)

Q: Consider a right triangle with two other angles A and B.  Find the value of sin (A) if cos (A)=3/5?

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Q: The picture shows angles A and B. Explain why sin(B) = -sin(A) and why cos(B) = -cos(A).

A: To solve this question, we will find the relation between the angle A and angle B.

Q: If x = 3 cot θ, use trigonometric substitution to write (sqrroot of 9) + x^2  as a trigonometric…

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.