Using exact values, find the value of:

Question

a. 12 sin 30 degrees ¨C 6 tan 45degrees + sec 45degrees / 52
12-1/2-6*(1) + ¡Ì2/52=¡Ì2/52
12-1/2-6+¡Ì2/52
what should i do next??

b. Sin2A + tan3A/2 - cos A + sec(a+ 15)
Sin2A + tan3A/2 - cos A + sec(a+ 15)= ¡Ì3/2 + 1 - ¡Ì3/2 + ¡Ì2 = 1+¡Ì2
same thing here too.
can u please so me the work.

Answer 1

hopefully this will post more clearly!

12sin 30 degree - 6 tan 45 degree + sec 45 degrees/ 52 =
12¡¤1/2 -6¡¤ 1 + ¡Ì2/52 = ¡Ì2/52

Sin2A + tan3A/2 - cos A + sec(a+ 15)= ¡Ì3/2 + 1 - ¡Ì3/2 + ¡Ì2 = 1+¡Ì2

Answer 2

a. What gets divided by 52?
What does ¨C mean?
What does ¡Ì2 mean?
What does ¡¤ mean?

Begin by realizing that sin 30 = 1/2 and tan 45 = 1

b. You cannot evaluate this unless you know what a and A are.