Question

iii)
sin 30° +tan 45º - cos ec60°
cot 45° +cos 60° - sec 30°
=​

Answer 1

Answer:

sin30=1/2 tan=1 cosec60=2/root3 cot45=1 cos60=1/2 sec30=2/root3

Explanation:

putting all the values

now

(1/2)+1-2/root3)(1+1/2-2/root3)

(1+1/2-2/root3) squaring

3/2-2/root3

9/4+4/3-6/root3 6/root3=18/3

9/4+4/3-18/3

27+16-72

43-72

-29....