1 and 0< a < If tan a= - find cos a. Cos a = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)

Q: Write each expression as an equivalent algebraic expression involving only x. (Assume xis positive.)…

A: Given: sin2tan-1x for solving this we assume tan-1x=θ and use formula sin2x=2sinxcosx so, tanθ=x…

Q: A. Simplify each of the following expressions. 1. sin?xcotxcscx cotx(sinx+tan.x) cscx+cotxr 3.…

A: 2. cotx sinx+tanxcscx+cotx4. 1-tan2x1+tan2x+1

Q: Write the expression as an algebraic expression in u u0 tan cos tan cos (Simplify your answer,…

A: Using trigonometric inverse formula

Q: What expression is equal to the given expression below? 1- tan²x 1+tan²x a. sin 2x b. cos 2x -sin 2x…

A: Given: 1-tan2x1+tan2x We write tan x by using the ratio of sin x and cos x.

Q: sin y 2 1- cos y COS

A:

Q: Give the exact value of the expression without using a calculator. 3 cos tan - tan 4 15 ..... 8 -1…

A:

Q: an [cos ¹(-1)] 8

A: