1 3. If sin x = and is in quadrant I, use the double-angle identities to find sin (2x), cos (2x), and tan (2x). (Hint: find cos x and tan x first.)

Q: Find tan θ if sec θ = √5 and sin θ < 0.

A: As value of cosθ and sinθ revolves around +1 to -1 , they take different values depending on the…

Q: Use the information given below to find sin (a-B).

A: Given,tanα = 512 = PerpendicularBase                               α is in 3rd quadrantPerpendicular…

Q: determine which of the two values is greater.a. tan 1 or tan 2 b sin 1 or tan 1 c. cos 2 or sin 2

A: a) tan(1) or tan(2) :       We find exact values of tan(1) and  tan(2) on calculator,…

Q: let A and B be positive angles les than 360 degree with a secA=-17/8, in quadrant 2 and with tan…

A: Let A and B be positive angles less than 360 degree with a secA=-17/8, in quadrant 2 and with tan…

Q: C. Verify the following trigonometric identities : 1. tanx csc x cos x 1 (consider example A) 2.…

A:

Q: If x is a positive acute angle and sin x = 1/2 , what is sin2x

A: We have to find what is sin2x. We know that

Q: An angle's initial ray points in the 3-o'clock direction and the angle measures radians. Which of…

A: It is given that an angle's initial ray points is in the 3-o'clock direction.

Q: Simplify by expressing the following trigonometric expressions in terms of sine and cosine…

A:

Q: Find the SIN and TAN (in fractional form) of an acute angle with COS = 3/5

A: We can find the sin and tan values as below