[" 田 "(1+cot theta-cosec theta)(1+tan th...

[" 田 "(1+cot theta-cosec theta)(1+tan theta+cos theta)^(2)+4(sin^(6)theta+cos^(6)theta)=13],[" 田 "3(sin theta-cos theta)^(4)+6(sin theta+cos theta)^(-)]

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(sin theta" cosec "theta tan theta cot theta)/(sin^(2)theta+cos^(2)theta)

Prove that: 3(sin theta-cos theta)^(4)+6(sin theta+cos theta)^(2)+4(sin^(6)theta+cos^(6)theta)-13=0

Prove that: sin^(6) theta + cos^(6) theta =1 - 3 sin^(2) theta cos^(2) theta

2(sin^(6) theta + cos^(6)theta) - 3(sin^(4)theta + cos^(4)theta)+ 1 = 0

If 4tan theta=3, evaluate (4sin theta-cos theta+1)/(sin theta+cos theta-1)

cos^(3)2 theta+3cos2 theta=4(cos^(6)theta-sin^(6)theta)

sin^(6)theta+cos^(6)theta+3sin^(2)theta cos^(2)theta=1

3(sin theta-cos theta)^(4)+6(sin theta+cos theta)^(2)+4(sin^(6)theta+cos^(6)theta) is equal to 11(b)12(c)13(d)14

4(sin^(6)theta+cos^(6)theta)-6(sin^(4)theta+cos^(4)theta) is equal to