Part D: Random Stuff! 1. If cos x = = and 270 sxs 360, determine an exact value for sin x. Show all steps.

Q: tan x cot x

A: Given:- tan(x) cot(x)  To find:- simplify the given expression

Q: cos x Prove: tan x = sec x. To receive full credit, you must show all steps. - 1-sin x

A: To prove,           cos x1-sin x - tan x = sec x.

Q: please show all steps to verify a identity  (1/1+sinx)    -    (1/1-sinx)  =-2sinxsec2x

A:

Q: Can the sin x ever be a value greater than 1?

A: We have to find the sinx value

Q: sin120o = ..............,cos240 o =...................

A:

Q: evaluate the following giving exact values when possible: cos(sin^(-1)(y/2))

A: Simplifying the given inverse trigonometric expression to find the desired value.

Q: How did you choose pi/2, -pi/2 when setting it equal to 3 theta.

A: How did you choose : 3θ = π/2 and –π/2

Q: Prove the identity. secx- tanx = 1 sec x

A: Given,

Q: Differentiate y = sin 20 cos 20

A:

Q: sinx=6/10 and sec x <0

A: -25/7

Q: Use a sketch to find the exact value of the expression cos (sin-1 4/5)

A: given expression: cossin-145we have to find the exact value of the expression

Q: Find cos o. (8, 6) ? COS O ニ Give your answer in lowest terms.

A: