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

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

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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-TRIGONOMETRIC RATIOS UPTO TRANSFORMATIONS-EXERCISE - 6(C)
  1. If 0^(@) lt A, B lt 90^(@), such that cos A = 5/13, sin B = 4/5, find ...

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

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

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  4. Evaluate sum(sin (A+B)sin(A-B))/(cos^(2)A cos^(2)B): if non of cos A ,...

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  5. Evaluate sum(sigmatauv(X-A))/(sigmatauvXsigmatauvA) if none of sinA, s...

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  6. Prove that cos35^(@)+cos85^(@)+cos155^(@)=0

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

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  8. Prove that sin750^(@)cos480^(@)+cos120^(@)cos60^(@)=(-1)/2

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  9. Prove that cos A + cos((4pi)/3 -A) + cos ((4pi)/3 + A) = 0.

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  10. Prove that cos^(2)theta+cos^(2)((2pi)/(3)+theta)+cos^(2)((2pi)/(3)-the...

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  11. Find the value of sin^(2)82 1/2-sin^(2)22 1/2.

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  12. Find the value of cos^(2)112 1/2-sin^(2)52 1/2.

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  13. Evaluate sin^(2)((pi)/(8)+(theta)/(2))-sin^(2)((pi)/(8)-(theta)/(2))

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  14. Find the value of cos^(2)52(1^@)/(2) - sin^(2)22 (1^@)/2

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  15. Find the maximum and minimum value of f(x)=3cosx+4sinx

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  16. Find the minimum and maximum values of sin2x-cos2x

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  17. Find the range of 7 cos x - 24 sin x +5

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  18. Find the range of 13cosx+3sqrt3 sin x-4

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  19. If cos alpha = (-3)/5 and sin beta = 7/25 where (pi)/2 lt alpha lt pi ...

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  20. If 0 lt A lt B lt (pi)/(4) and sin (A+B)=(24)/(25) and cos (A-B)= (4)/...

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