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(sec alpha * sec beta + tan alpha tan b...

`(sec alpha * sec beta + tan alpha tan beta )^(2)-( sec alpha * tan beta + tan alpha * sec beta )^(2)` =

A

0

B

1

C

`-1`

D

`sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-TRIGONOMETRIC RATIOS AND IDENTITIES -EXERCISE 1 A ( TRIGONOMETRIC FUNCTIONS)
  1. (cos theta + sin theta )^(2) + (cos theta - sin theta )^(2) =

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  2. ( tan alpha + " cosec " beta )^(2) - ( cot beta - sec alpha )^(2) =

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  3. (sec alpha * sec beta + tan alpha tan beta )^(2)-( sec alpha * tan be...

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  4. (sec A + tan A -1) (sec A - tan A+1)=

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  5. ("cosec " theta - sin theta ) ( sec theta - cos theta ) ( tan theta + ...

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  6. 2(sin^(6) x + cos^(6) x ) -3(sin^(4) x + cos^(4) x ) +1=

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  7. 3(sin x + cos x )^(4) + 6(sin x - cos x )^(2) + 4(sin^(6) x + cos^(6) ...

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  8. sin A ( cot A +3( 3 cot A + 1) -1 " cosec " A -10 cos A =

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  9. a sin^(2) theta + b cos^(2) theta =c implies tan^(2) theta =

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  10. sec^(4) theta (1-sin^4 theta ) - tan^(2) theta =

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  11. "cosec"^(2) theta * cot^(2) theta -sec^(2) theta * tan^(2) theta - (co...

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  12. sec^(2)A tan^(2) B-tan^(2)A sec^(2) B=

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  13. 2 sec^(2) theta - sec^(4) theta - 2 "cosec"^(2) theta + " cosec"^(4) t...

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  14. sin^(2) alpha * tan alpha + cos^(2) alpha * cot alpha + 2 sin alpha co...

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

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  16. sin^(2) A cos^(2)B + cos ^(2) A sin^(2) B + sin^(2) A sin^(2) B+ cos^(...

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  17. If sin A , cos A and tan A are in G.P. then cot^(6) A- cot^(2) A =

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  18. ( sec theta + tan theta -1)/( tan theta - sec theta +1)

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  19. (cot theta + " cosec " theta -1)/(cot theta - " cosec " theta +1)=

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  20. cot^(2) theta ((sec theta -1)/(1+ sin theta ))+ sec^(2) theta ((sin th...

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