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सिद्ध कीजिए की 2 sin( 45^(@) +A) cos (...

सिद्ध कीजिए की
` 2 sin( 45^(@) +A) cos ( 45^(@) +B) =cos *(A+B) +sin (A-B)`

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

sin 45^(@)(cos 45^(@)) =…………..

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

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

2 sin 45^@.cos 45^@ =………

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

The value of sin45^(@)+cos45^(@) is :

If A = sin 45^(@) + cos 45^(@) and B= sin 44^(@) + cos44^(@) , then:

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