Find the value of tan²42-cosec²48
Answers
Answered by
1
Step-by-step explanation:
tan^2 (90-48) - cosec^2 (90-42)
sec^2 48 - cot^2 42
I hope this will help you
Answered by
2
Answer:
since
48°+42°=90°
48°=90°-42°
L.H.S
cosec²48°-tan²42°
cosec²(90°-42°)-tan²42°
sec²42°-tan²42°
1
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