Math, asked by yana85, 11 months ago

prove without using trigonometric tables :-

Attachments:

Answers

Answered by Anonymous
7
L. H. S. = Sin^2 ( 90 - theta ) [ 1 + cot^2 (90 - theta )]

L. H. S. = Cos^2 theta [ 1 + tan^2 theta ]

[ Identity = 1 + tan^2 theta = sec^2 theta ]

L. H. S. = cos^2 theta × Sec^2 theta

L. H. S. = Cos^2 theta × 1 / cos^2 theta

L. H. S. = 1

R. H. S. = 1

Hence, PROVED.

yana85: ok
Similar questions