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If sin theta=4 cos theta, then what is t...

If `sin theta=4 cos theta`, then what is the value of `sin theta cos theta`?
यदि `sin theta=4 cos theta`, है, तो `sin theta cos theta` का मान क्या होगा ?

A

`2/9`

B

`3/10`

C

`4/17`

D

`3/4`

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PINNACLE-TRIGONOMETRY-EXERCISE
  1. The value of sqrt(sec^2 theta +cosec^2 theta )xx sqrt(tan^2 theta -sin...

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  2. If cos^2 theta-3 cos theta+2=sin^2 theta , 0^@< theta< 90^@, then the ...

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  3. If sin theta=4 cos theta, then what is the value of sin theta cos the...

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  4. If (cos theta )/(1-sin theta )+(cos theta )/(1+sin theta )=4, 0^@< the...

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  5. If (1+tan^2 theta)+(1+ (tan^2 theta)^-1)=k, then sqrtk=? यदि (1+tan^...

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  6. The value of sin^2 30^@ cos^2 45^@ +4 tan^2 30^@+ 1/2 sin^2 90^@+ 2cos...

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  7. If tan theta=2/3, then (3 sin theta-4 cos theta)/(3 sin theta+4 cos th...

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  8. If Sec4 theta= Cosec (theta + 20^@) , then theta is equal to: यदि ...

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  9. If (tan theta + sin theta)/(tan theta - sin theta)=(k+1)/(k-1). Then k...

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  10. The value of sin^2 38^@+ sin^2 52^@+ sin^2 30^@- tan^2 45^@ is equal t...

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  11. If Cosec theta=13/12, then Sin theta +Cos theta -tan theta is equal t...

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  12. The value of (sin 44^@)/(cos 46^@)+ sin^2 60^@-cos^2 45^@+ sec 60^@ is...

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  13. If 3cos^2 A+7 sin^2 A=4, then what is the value of cot A, given that A...

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  14. If (cos^2 theta)/(cot^2 theta-cos^2 theta)=3, 0^@< theta<90^@, then th...

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  15. The value of 1/(sin theta)-(cot^2 theta) /(1+cosec theta) is : 1/(si...

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  16. (1/(1+sin^2 theta)+1/(1+cosec^2 theta)) =?

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  17. The value of 1/(secx- tanx)-1/(cos x), 0^@ <x<90^@, is equal to : ...

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  18. If 4 - 2 sin^2 theta-5 cos theta=0, 0^@ < theta<90^@, then the value ...

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  19. If cot theta= sqrt7, then the value of (cosec^2 theta-sec^2 theta)/(co...

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  20. If sin theta= a/(sqrt(a^2+b^2)), 0^@< theta<90^@, then the value of se...

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