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(sin 65^(@) + sin 25^(@))/( cos 65^(@) +...

`(sin 65^(@) + sin 25^(@))/( cos 65^(@) + cos 25^(@))= `

A

0

B

1

C

2

D

4

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-TRIGONOMETRIC RATIOS AND IDENTITIES -EXERCISE 1 D ( TRANSFORMATIONS )
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  4. ( sin 70^(@) + cos 40^(@) )/( cos 70^(@) + sin 40^(@))=

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  5. ( sin 75^(@) - sin 15^(@))/( cos 15^(@) - cos 75^(@))=

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  6. ( cos^(2) 33^(@) - cos^(2) 57^@)/( sin 21^(@) - cos 21^(@))=

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  7. (1+ cos 56^(@) + cos 58^(@) - cos 66^(@))/( cos 28^(@) cos 29^@ sin 3...

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  9. A+C=2B implies ( cos C - cos A )/( sin A - sin C )=

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  12. cot (15^(@) -A) + tan(15^(@) + A) =

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  13. If m* tan ( theta - 30^(@))= n* tan( theta + 120^(@)), "then " cos 2 ...

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  15. In DeltaABC, " if " cos A=( sin B)/( 2 sin C) , then the triangle is

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