sin(45^@+A)sin(45^@-A)=....

`sin(45^@+A)sin(45^@-A)=.`

A

`cos A `

B

`1/2 cos 2A`

C

`cos 2A`

D

`1/2 cos A`

Verified by Experts

The correct Answer is:

B

FACTORIZATION FORMULAE
TARGET PUBLICATION|Exercise CRITICAL THINKING|34 Videos
FACTORIZATION FORMULAE
TARGET PUBLICATION|Exercise COMETITIVE THINKING|34 Videos
CIRCLE AND CONICS
TARGET PUBLICATION|Exercise EVALUATION TEST|28 Videos
PROBABILITY
TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos

Similar Questions

Explore conceptually related problems

Value of sin(45^@+x)+sin(45^@-x)=

Prove that: cos(45^(@)-A)cos(45^(@)-B)-sin(45^(@)-A)sin(45^(@)-B)=sin(A+B)

Find the value of (cos(45^@-A))/(sin(45^@+A))

Simplify sin(A+45^(@))sin(A-45^(@)) .

Prove that: i) sin(A+B)cos(A-B)-cos(A+B)sin(A-B)=sin2B ii) cos(45^(@)-A)cos(45^(@)-B)-sin(45^(@)-A)sin(45^(@)-B)=sin(A+B)

2sin45^(@)cos45^(@)

cos (45 ^ (@) - A) cos (45 ^ (@) - B) -sin (45 ^ (@) - A) sin (45 ^ (@) - B) = sin (A + B)

cos 45^(@)-sin 45^(@)=?

What is the value of (1/(sin45^@)-sin45^@) (1/(cos 45^@)-cos45^@)(tan45^@+1/(tan45^@)) ?

Evaluate sin45^(@)+cos45^(@)