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Four numbers n1,n2,n3a n dn4 are given a...

Four numbers `n_1,n_2,n_3a n dn_4` are given as `n_1=sin15^0-cos15^0,n_2=cos93^0+sin93^0,n_3=tan27^0-cot27^0, n_4=cot127^0+tan127^0dot` `n_1<0` (b) `n_2<0` (c) `n_3<0` (d) `n_4<0`

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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
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  4. If sin^3xcos3x+cos^3xsin3x=3/8, then the value of 8sin4x is

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  13. The total number of solution of |cotx|=cotx+1/(sinx),x in [0,3pi] , is...

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