any help would be appreciated.

each question. A correct answer without an explanation will not earn any credit. Use basic identities to simplify sin" a | cos r sinc. Enclose arguments of functions in parentheses. For example, sin (2). Remember that writing sin(x) to the fourth power as sin (a) is just a mathematical shorthand. You should write it as (sin (a) )4, which is what Mobius expects. sin x + cos x sinc = 4