Question

Assertion (A): sin² 5° + sin² 10° +..........+sin²90°=9.5
Reason (R): If alpha +beta= 90°, then sin²alpha + sin² Beta=1
a) Both A and R are correct and R is correct explanation of A
b) Both A and R are correct but R is not correct explanation of A
c) A is correct, R is incorrect
d) A is incorrect, R is correct​

Answer 1

Answer:

B

Step-by-step explanation:

hope it will helpful to you

Answer 2

Answer:

answer is option b , it is answer