" 7."sin^(6)x

There is a formula that says that sin7x=A sin^(7)x+B sin^(6)x+C sin^(5)x+D sin^(4)x+E sin^(3)x+F sin^(2)x+G sin x+H The value of the sum (A+B+C+C+E+F+G+H), is (i) 0(ii)1(iii)-1 (iv) unable to determine

If f(x) = 3(sin x - cos x)^(4) + 6(sin x + cos x)^(2) +4(sin^(6)x + cos^(6)x) and f(pi/7) = 13 then find f (2pi/7) .

Solution to the inequation sin^(6)x+cos^(6)x<(7)/(16) must be

The number of solutions of sqrt(6-cos x+7sin^(2)x)+cos x=0

Value of "sin"^(6)(pi)/16+"sin"^(6)(3pi)/16+"sin"^(5pi)/16+"sin"^(6)(7pi)/16 equals

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

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

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