Math, asked by jaherulmallick76, 1 month ago

If sin 7x = cos 11x, then the value of tan 9x + cot 9x is
options: a) 2
b) 1
c) 7
d) 11

Answers

Answered by gargsarishti

2

Answer:

a) 2

Step-by-step explanation:

sin7x=cos11x

sin7x=sin(90-11x)

7x=90-11x

18x=90

x=5

tan9x+cot9x

tan45+ cot45

1+1

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