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( cos^(3) A + sin^(3) A )/( cos A + sin ...

`( cos^(3) A + sin^(3) A )/( cos A + sin A ) + (cos^(3) A - sin^(3)A)/( cos A- sin A) = `

A

0

B

-1

C

1

D

2

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-TRIGONOMERTIC RATIOS-PRACTICE EXERCISE
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  3. ( cos^(3) A + sin^(3) A )/( cos A + sin A ) + (cos^(3) A - sin^(3)A)/(...

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  4. If cosec theta + cot theta = 1//3 then cosec theta - cot theta =

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  5. If cosec A = 4x + (1)/(16x) then cosec A + cot A =

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  6. If tan theta = 5 a - (1)/(20a) then sec theta + tan theta =

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  7. If 1+4 tan theta = 4 sec theta then cos theta=

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  9. If sin theta, cos theta, tan theta are in GP then cos^(9)theta + cos^(...

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  10. (1+ tan alpha tan beta)^(2) + (tan beta - tan beta)^(2)=

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  11. If 2 Cos^(2)B - 1 = Tan^(2) A then Cos A Cos B =

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  12. (sin^(2)alpha)/(1+cot^(2) alpha) + (tan^(2)alpha)/((1+tan^(2) alpha)^(...

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  13. If (2 sin theta )/(1+ cos theta + sin theta )=x, find the value of (1...

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  14. If Sin^(2) theta + 3 Cos theta -2 =0 then Cos^(3) theta + Sec^(3) thet...

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  16. If sin theta + sin^(2) theta =1 then cos^(4) theta + cos^(8) theta + 2...

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  17. If sqrt((1+cos alpha)/(1-cos alpha))=cosec alpha + cot alpha, then the...

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  19. If Cos theta - Sin theta = sqrt(2) Cos theta then Cos theta + Sin thet...

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  20. If a = Cos theta - Sin theta, b = Cos^(3) theta - Sin^(3) theta, then

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