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" Show that: "sin(45^(@)+A)sin(45^(@)-A)...

" Show that: "sin(45^(@)+A)sin(45^(@)-A)=(1)/(2)cos2A

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Prove that sin(45^@+A)sin(45^@-A)=1/2cos2A.

Prove that: sin(45^(@)-A)sin(45+A)=1/2cos2A

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

2sin45^(@)cos45^(@)

sin^(2)45^(@)+cos^(2)45^(@)=

Prove that: sin(45^(@)-A)=1/2cos2A

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

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

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

sin 45^(@)(cos 45^(@)) =…………..