`cospi+isinpi=?`

If z=cospi/4+isinpi/6 then

{(1+cospi//8+isinipi//8)/(1+cospi//8-isinpi//8)}^(8)=

Let Q=((cospi/4,-sinpi/4),(sinpi/4,cospi/4)) and x=((1/sqrt2),(1/(sqrt(2)))) then Q^3X is equal to

Prove that: cospi/10-sinpi/10=sqrt(2)sin(3pi)/(20)

The area bounded by y=x^(2)+2 and y=2|x|-cospi x is equal to

differentiate with respect to x to the given function (x^(2)cospi/4)/(sinx)

Statement- I: f(x)=4sqrt2x^3-3sqrt2x-1=0 has only one solution in xin(1/2,1) Statement- II: cospi/2 is a solution of f(x)=0

If 0 le x le pi then cos0le cosx le cospi

Consider the function f(x)=[x^2|cospi/(2x)|\ if\ x!=0 0,\ \ \ \ \ \ \ \ \ \ \ \ \ \ if\ x=0 Show that f(0) is continuous