2.) use a calculator and find to 4 decimal places the value of the trigonometric function using the given identity.
2u = 82°, sin 2u = 2 sin u cos u
a.) 0.9992

b.) 0.9729

c.) 0.9903

d.) 0.0792

e.) 0.9927

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.