Home
Class 11
MATHS
सिद्ध कीजिए कि cos((pi)/(4)+1)+cos((pi...

सिद्ध कीजिए कि
`cos((pi)/(4)+1)+cos((pi)/(4)-A)=sqrt2. cos A`

Promotional Banner

Similar Questions

Explore conceptually related problems

cos ((3pi)/( 4) + x) - cos((3pi)/( 4) -x) =- sqrt2 sin x

cos ((3pi)/( 4) + x) - cos((3pi)/( 4) -x) =- sqrt2 sin x

cos ((3pi)/( 4) + x) - cos((3pi)/( 4) -x) =- sqrt2 sin x

Prove that: cos((pi)/(4)+x)+cos((pi)/(4)-x)=sqrt(2)cos x

Prove that: cos((pi)/(4)+x)+cos((pi)/(4)-x)=sqrt(2)cos x

Prove that cos ((pi)/(4) + x) + cos ((pi)/(4) -x) = sqrt2 cos x

Prove that cos ((pi)/(4) + x) + cos ((pi)/(4) -x) = sqrt2 cos x

Prove that cos ((pi)/(4) + x) + cos ((pi)/(4) -x) = sqrt2 cos x

Prove that: cos(pi/4+A)+cos(pi/4-A)=sqrt(2)cosA

Prove that: cos(pi/4+A)+cos(pi/4-A)=sqrt(2)cosA