Hello

(2 marks) 1. Given the identity, 1 + cot'x csc x. For which values of x is the proof valid? 2. Prove each identity. Show your steps and/or explain your reasoning. sinx 1= sin x sinx (3 marks) L ey Expectations [J When using identities, it is a requirement to only use identities on your diploma given formula sheet When proving identities, you are expected to check and list any non-permissible values before simplifying. When proving an identity, you are not permitted to move values across the equation, or multiply both sides of the equation by a value, You are only allowed to rewrite, substitute identities, or simplify @Xpressions on one side of the equation at a time, When proving an identity, you need to show each full step at atime When you have finished proving an identity, you need o write a concluding statement. This can be LS = RS, or QED. (3 marks) Expectations [0 When using identities, it is a requirement o only use identities on your diploma given formula sheet When proving identities, you are expected to check and list any non-permissible values before simplifying. When proving an identity, you are not permitted to move values across the equation, or multiply both sides of the equation by a value. You are only allowed to rewrite, substitute identities, or simplify expressions on one side of the equation at a time. When proving an identity, you need to show each full step one at a time When you have finished proving an identity, you need to write a concluding statement. This can be LS = RS, or QED. 2 - 2tan x b.sintan + cos@ sec + 1 = sec'Bcos @