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Express ((sqrt(3)cos 25^(@)+sin25^(@)))/...

Express `((sqrt(3)cos 25^(@)+sin25^(@)))/(2)` as a sine of an angle.

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AAKASH SERIES-COMPOUND ANGLES-EXERCISE - 2.1 ( VERY SHORT ANSWER QUESTIONS)
  1. Find the values of the following : Tan((pi)/(4)+theta).Tan((pi)/(4)...

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  2. S.T cos340^(@) . Cos40^(@)+sin200^(@).sin140^(@)=(1)/(2)

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  3. Express ((sqrt(3)cos 25^(@)+sin25^(@)))/(2) as a sine of an angle.

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  4. Express (cos theta - sin theta) as a cosine of an angle.

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  5. If tan A = (1)/(2), tan B = (1)/(3)and A, B are acute angles then find...

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  6. If 0^(@) lt A, B lt 90^(@), such that cos A = 5/13, sin B = 4/5, find ...

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  7. Find Tan ((pi)/(4) + A) in terms of Tan A

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  8. Find Cot ((pi)/(4) + A) in terms of Cot A

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  9. Prove that sin ^(2) theta + sin ^(2) (theta+(pi)/(3))+ sin ^(2) (theta...

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  10. Prove that (cos9^(@)+sin9^(@))/(cos9^(@)-sin9^(@))=cot36^(@)

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  11. If tan theta = (cos 11^(@)+sin11^(@))/(cos11^(@)-sin11^(@)) and theta ...

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  12. Prove that tan70^(@)-tan20^(@)=2tan50^(@).

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  13. Find tan 20^(@) + tan40^(@) + sqrt(3)tan20^(@)tan40^(@).

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  14. Find the value of Tan10^(@) + Tan35^(@) + Tan10^(@).Tan35^(@).

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  15. Find the value of tan56^(@)-tan11^(@)-tan56^(@).tan11^(@).

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  16. Prove that Tan(theta + 135^(@)) Tan(theta-135^(@)) = - 1

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  17. Show that cos 35^(@) + cos 85^(@) + cos 155^(@) = 0

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  18. Prove that tan72^(@)=tan18^(@)+2tan54^(@).

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  19. Show that sin 750 ^(@) cos 480^(@) + cos 120 ^(@) cos 60 ^(@)=-1/2

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  20. Find the value of sin^(2) 45^(@) - sin^(2) 15^(@)

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