Find cos2t given the following: sin t = -7/25 and cos t > 0

Q: Find sin π/4, cos π/4, and tan π/4.

A:

Q: Find the exact value of: cos-1 0.

A:

Q: Simplify  1/cos a 1/sin b

A: we know that  1cosθ=secθ1sinθ=cosecθ

Q: epresent 3 sin x + 6 cos x in a form A sin(x + p), use radians for p.

A:

Q: Give the exact value of sin (cos ()). 3

A: The objective is to find the exact value of the trigonometric function.

Q: Let sinA=-4/5 with A in QIII and cosB=-3/5 with B in QII. Anwer Exactly. Find sin(A-B), cos(A-B),…

A: Given,

Q: ind cose, given that sin0 = -5/13 and 0 s in quadrant III. %3D elect one: a. -12/13 b. -5/12 C. 12/5…

A: Answer is- Option a is correct Explanation is given below...

Q: a) Evaluate the following: 1 - 2 - L {sin3t cos3t} , 3 - I {sinht sint}

A:

Q: (sin x+ cos x). Find xp

A:

Q: Calculate sin(TA) and cos(TA) for 1 A = -1/6 5/6 and verify the equality sin? (TA) + cos?(TA) = I.…

A:

Q: Find sin(2θ), if cosθ=24/25 and θ lies inquadrant IV.

A:

Q: Let cos A = -5/13 with A in QIII and sin B = 3/5 with B in QI. Find the exact answer for cos (A+B)…

A:

Q: Find cos 0 and csc 0 3 if sin 0 = -- and cos 0 < 0

A: given  sinθ=-34we know sin2θ+cos2θ=1and sinθ=1cscθ

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.