यदि `cosx,cosy+sinx.siny=-1` हो तो `cosx+cosy` का मान होगा ?

If cos x. cosy+sinx.siny=-1 then cosx+cosy is :

If cosx.cosy + sinx.siny = -1 then cosx + cosy is

यदि x^(2)+2=0 हो तो x का मान होगा-

If secA + tanA =a, then the value of cosA is यदि secA + tanA =a हो, तो cosA का मान क्या होगा?

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 :

(cosx-cosy)^(2)+(sinx-siny)^(2)=?

cosx(1+cosy)dx-siny(1+sinx)dy=0

If 3sinx + 4cosx = 2, then the value of 3cosx - 4 sinx is equal to: यदि 3sinx + 4cosx = 2 तो 3cosx - 4sinx का मान ज्ञात करें:

If sinx+siny=1/2 and cosx+cosy=1 , then tan(x+y)=

If cosx+cosy+cosz=sinx+siny+sinz=0" then "cos(x-y)=