Question

If Cos9A=SinA and 9A<90°,then the value of tan5A is - *
2 points
0
1
1/root 3
root 3​

Answer 1

Answer:

1

Step-by-step explanation:

cos9A = sinA

cos9A = cos ( 90° - A)

9A = 90° - A

A = 9°

5A = 5× 9°= 45°

tan 45° = 1