Question

HELP PLEASE

Use the given information to find the exact function value. Rationalize the denominator if necessary. 12 37 cos a = <a <- 37 2 Part 1 out of 3 a a. sin =

Answer 1

We know that Cos 20 = 1- 2 sinzo 80, Cosa 1-2 Sin²a/ now KE 707 у. ( 37 807 <a 2 2 4 2 so a dividing by 2 is the angle which is in the quadrant, and in 2nd quadrant 2nd e Louis will be positive now Cosas -12 37 cosa |- 2Sinkara -12 37 1-2 sinzah 12 -1 = 37 - 251m2a/ +2 sinal 49 37 Quist 49 37X2 V

sina/ 49 M 37x2 sinal 49 3782 7 $37x2 Rationalizing by muniplying by reim numerator and denominator. Sinal 2 7x √2 37x82x2 72 23
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