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Find the value of sin 75^(@)...

Find the value of `sin 75^(@)`

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The correct Answer is:
`(sqrt(3)+1)/(2sqrt(2))`
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SRISIRI PUBLICATION-IPE SCANNER (TEXUAL BITS)-Very Short Questions (2 marks) (Trigonometric Ratios, Transformations)
  1. Prove that cos A + cos((4pi)/3 -A) + cos ((4pi)/3 + A) = 0.

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  2. Find the value of sin 22(1/2)^(@)

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  3. Find the value of sin 75^(@)

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  4. Find the value of tan 75^(@)

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  5. Find the value of tan 75^(@) + cot 75^(@)

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  6. Find the values of cos 22(1/2)^(@) using the value of cos 45°?

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  7. Find the values of tan 22(1/2)^(@)

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  8. Find the values of sin 36^(@)

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  9. Find the value of cos 18^(@)

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  10. If cos A = sqrt((sqrt(2)+1)/(2sqrt(2))), find the value of cos2A

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  11. IF sintheta=4/5 and theta is not in the first quadrant, find the value...

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  12. If cos theta = t(0lt t lt 1) and theta does not lies in the first qua...

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  13. If cos theta = t(0lt t lt 1) and theta does not lies in the first qua...

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  14. If sin A=(12)/(13), cos B= (3)/(5) and neither A nor B is in the first...

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  15. If 0 lt A, B lt 90^(@), cos A= (5)/(13) and sin B =(4)/(5) then find s...

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  16. If sin =(1)/(sqrt10), sin beta =(1)/(sqrt5) and alpha , beta are acu...

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  17. If cos theta =(-5)/(13) and (pi)/(2) lt theta lt pi , find the value...

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  18. If 0 lt A lt pi //4 and cos A = 4//5, then find the values of sin 2...

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  19. If cos theta =(5)/(13) and 270 ^(@) lt theta lt 360^(@), evaluate sin ...

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  20. If sin alpha =(3)/(5) , where (pi)/(2) lt alpha lt pi , evaluate cos ...

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