Question

Find the value of tan 27 ×cot 63 -sec^27

Answer 1

Answer:

Step-by-step explanation:

tan27*cot63-sec² 27

=tan27*cot (90-27)-sec²27

=tan27*tan27-sec²27

=tan²27-sec ²27             [1+tan²A=sec²A]

=tan²27-1-tan²27

=-1 ANS

HOPE IT HELPS.......

Answer 2

Answer:

Step-by-step explanation:

Tan 27 * cot 63 - sec^2 27

Tan 27 * tan (90-63) - sec^2 27

Tan 27 * tan 27 -sec ^2 27

Tan^2 27 - sec^2 27

-(sec^2 27 - tan^2 27)

-1