(iv) sec2 22°- cot2 68° = 1.
Answers
Answered by
3
Answer:
sex^2 22° - cot^2 68°
sec^2 22° - cot^2(90°-22°)
sec^2 22° - tan^2 22°
1 = RHS
Answered by
1
Answer:
sec² 22° - tan²(90-22)
sec²22°- tan²22
=1
sec²theta -tan²theta =1
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