20.Which of the following is NOT coterminal to an angle measuring 2π/3? a) 14π/3 b) -4π/3 c) 32π/3

Question

20.Which of the following is NOT coterminal to an angle measuring 2π/3?
a) 14π/3                b)   -4π/3
c)  32π/3               d)   -20π/3
21.sinθ=-9/41 and π ≤ θ ≤ 3π/2 , what is cosθ?
a)  41/40              b)-41/40
c)  40/41              d) -40/41

Kunduz · Accepted Answer

Click to see the answer