Q. cosec^3 30cos60 tan^3 45 sin^2 90 sec^2 45 cot30
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we know
cosec 30° =2
cos 60° = 1/2
tan 45° = 1
sin 90°=1
sec 45 =underroot 2
cot 30° = underroot 30 .
by putting these value
= 2^3 ×( 1/2)× (1)^3 × (1)^2 × (2)^1/2 × (3)^1/2
=8× 1/2× 1×1× (2×3)^ 1/2
=4× (6)^1/2
the answer is 4 into underroot 6 according to your question.
cosec 30° =2
cos 60° = 1/2
tan 45° = 1
sin 90°=1
sec 45 =underroot 2
cot 30° = underroot 30 .
by putting these value
= 2^3 ×( 1/2)× (1)^3 × (1)^2 × (2)^1/2 × (3)^1/2
=8× 1/2× 1×1× (2×3)^ 1/2
=4× (6)^1/2
the answer is 4 into underroot 6 according to your question.
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