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If ( sin x + cos x)/(cos^(3)x)=a tan^(3...

If ` ( sin x + cos x)/(cos^(3)x)=a tan^(3)x+b tan^(2)x+c tan x+d ` then `a+b+c+d=`

A

4

B

-4

C

1

D

-1

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AAKASH SERIES-TRIGONOMERTIC RATIOS-EXERCISE- II
  1. If theta = (pi)/(21), then (sin23 theta-sin 7 theta)/( sin2 theta + si...

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  2. If 1+sin theta + sin^(2) theta + ...oo= 4+2sqrt(3), 0 lt theta lt pi a...

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  3. If ( sin x + cos x)/(cos^(3)x)=a tan^(3)x+b tan^(2)x+c tan x+d then ...

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  4. If sin^(4) theta + cos^(4) theta = l + 3 +k sin^(2) theta cos^(2) thet...

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  5. If 4 sin theta + 3 cos theta =5 then tan theta =

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  6. If sqrt(sin x)+ cos x = 0 then sin x =

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  7. sin^(2) x=1-sinx then cos^(4)x+cos^(2)x=

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  8. If cos x + cos^(2) x =1 , " then " sin^(12) x + 3 sin^(10)x + 3sin^(8...

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  9. If sec A = 5x + (1)/(20x) then sec A + tan A =

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  10. If tan theta = p - (1)/(4p) then sec theta - tan theta =

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  11. sqrt(1-sin^(2)100^(@))*sec 100^(@)=

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  12. If sqrt((1+sin A)/(1-sin A))=sec A +tan A, then the quadrants in which...

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  13. If pi/2 lt theta lt pi then sqrt((1-sin theta)/(1+sin theta))+sqrt((1+...

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  14. If pi lt alpha lt 2pi then (1)/(Sin alpha - sqrt(cot^(2)alpha -cos^(2)...

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  15. ((sqrt(3) + 2 cosA)/( 1-2 sin A ))^(-3) + ((1+ 2 sin A )/( sqrt(3)-2 c...

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  16. If 2 sin x + 5 cos y + 7 sin z = 14 then 7 tan. (x)/(2) + 4 cos y - 6 ...

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  17. If (sin alpha + "cosec" alpha )^(2) + ( cos alpha + sec alpha )^(2)=k+...

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  18. If Sin theta + Cos theta = sqrt(3) Cos theta then 2 Cos theta - Sin ...

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  19. If a cos theta - b sin theta = c then a sin theta + b cos theta=

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  20. If a Sin theta + b Cos theta = c then (a-b tan theta)/(b + a tan theta...

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