Evaluate each of the following

$c o s e c^{3} 30^{o} c o s 60^{o} t a n^{3} 45^{o} s i n^{2} 90^{o} s e c^{2} 45^{o} c o t 30^{o}$

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Solution

cosec3 30o cos 60o tan3 45o sin2 90o sec2 45o cot 30o

=2³2/3½1*12½²3½
=32

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Similar questions

c o s e c^{3} 30^{\circ} c o s 60^{\circ} t a n^{3} 45^{\circ} s i n^{2} 90^{\circ} s e c^{2} 45^{\circ} c o t 30^{\circ}

{sin}^{2} 30^{\circ} + {sin}^{2} (90^{\circ} - 30^{\circ})

4 (s i n^{4} 30^{\circ} + c o s^{2} 60^{\circ}) - 3 (c o s^{2} 45^{\circ} - s i n^{2} 90^{\circ}) - s i n^{2} 60^{\circ}

Evaluate each of the following

cos $60^{\circ}$ cos $45^{\circ}$ - sin $60^{\circ}$ sin $45^{\circ}$

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