cot^2 30•-2cos^2 60•-3/4sec^2 45•-4sin^2 30•
Answers
Answered by
0
zjshgeh ghhg DD xx gjbfff hnv me ko big if
Answered by
0
Step-by-step explanation:
1st value of each t. ratio :
cot 30-√3, cos 60-1/2 , sec 45-√2, sin 30- 1/2.
ans. (√3)^- 2(1/2)^ -3/4(√2)^-4(1/2)^
=3- 2×1/4 - 3/4×2 - 4×1/4
=3- 1/2 -3/2 -1
= 6-1-3-2
2
= 6-6
2
=0.
Similar questions