Find the value of 3 tan squared26°-3 cosec squared 64°
Answers
Answered by
48
take a common '3' than. cosec (90-26) is equal to sec26 so, 3(1-1) =0
Answered by
154
tan(26°)=cot(90-26) = cot(64°)
so 3tan^2(26)=3cot^2(64)
so 3tan^2(26)–3cosec^2(64) can be written as
3cot^2(64)–3cosec^2(64)
= 3[cot^2(64)–cosec^2(64)] = 3(-1) = -3
the answer is -3
so 3tan^2(26)=3cot^2(64)
so 3tan^2(26)–3cosec^2(64) can be written as
3cot^2(64)–3cosec^2(64)
= 3[cot^2(64)–cosec^2(64)] = 3(-1) = -3
the answer is -3
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