If `sinx-cosx=0` then find the principal value of x

If 3sinx+4cosx=2 , then find the value of 3cosx-4sinx .

If sinx+cosx=1/5 , then find the value of tan 2x .

If sinx - cosx = 0, then the value of (sin^3 x-cos^3 x) is: यदि sinx - cosx = 0 ,तो (sin^3 x-cos^3 x) मान होगा :

If sinx - cosx = 0, 0^@ltxlt90^@ then the value of (secx +cosec x)^2 is: sinx - cosx = 0, 0^@ltxlt90^@ तो (secx +cosec x)^2 का मान है:

If sinx + cosx = a, then the value of| sinx - cosx| is

If sinx+cosx=sqrt(y+1/y), y gt 0, x in[0,pi] , then find the least value of x satisfying the given conditions.

If -pi/4lexlepi/4 then abs((sinx,cosx,cosx),(cosx,sinx,cosx),(cosx,cosx,sinx))=0 then find the number of solution

If sinx-cosx=1,where'x'is an acute angle,the value of (sinx+cosx) is:

If A=f(x)=[(cosx, sinx, 0),(-sinx, cosx,0),(0,0,1)], then the value of A^-1= (A) f(x) (B) -f(x) (C) f(-x) (D) -f(-x)

If 0ltxlt(pi)/(2) exp [(sin^(2)x+sin^(4)x+sin^(6)x+'.....+oo)log_(e)2] satisfies the quadratic equation x^(2)-9x+8=0 , find the value of (sinx-cosx)/(sinx+cosx) .