Question

3) in ABC and Xyz, it LA and LX are acute angles such that, cos a=cost - Lä then show that ​

Answer 1

Answer:

sec(9

0

˚

−θ)cos(9

0

˚

−θ)tan(9

0

˚

−θ)

sin(9

0

˚

−θ)cosec(9

0

˚

−θ)cotθ

+

tan1

0

˚

tan3

5

˚

tan5

5

˚

tan8

0

˚

sin

2

6

5

˚

+sin

2

2

5

˚

+2cos

2

3

2

˚

cosec

2

5

8

˚

−cos

2

4

5

˚