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" 6."quad sin(45^(@)+A)-cos(45^(@)-A)=0...

" 6."quad sin(45^(@)+A)-cos(45^(@)-A)=0

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

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

2sin45^(@)cos45^(@)

sin 45^(@)(cos 45^(@)) =…………..

cos (A +B) + sin (A -B) = 2 sin (45 ^(@) + A) cos ( 45 ^(@) + B).

The value of sin(45^(@)+theta)-cos(45^(@)-theta) is

The value of sin(45^(@)+theta)-cos(45^(@)-theta) is

The value of sin(45^(@)+theta)-cos(45^(@)-theta) is

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

(cos (45 ^ (@) + A) -cos (45 ^ (@) - A)) / (sin (120 ^ (@) + A) -sin (120 ^ (@) - A)) =