Question

EXERCISE 8.3
I Evaluate
sin 18°
cos 72
tan 26
cot 64
(in) cos 48° -sin 42(iv) cosee 31-se 59
2 Show that
(1) tan 48 tan 23° tan 42° tan 67° -1
(a) cos 38° cos 52-sin 38° sin 52° 0
3. If tan 2A -cot (A-18°), where 2A is an acute angle, find the value of A
5. Iftan A-cot B. prove that A+B - 90°
6.If sec 4A - cosec (A -20°), where 4A is an acute angle, find the value of A​

Answer 1

Answer:

I DONT KNOW BRO SORRY

Step-by-step explanation:

1. 6*9/**6-2369/*5652*6-5956-2*695/95*+3-6*2/9