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Find the value of Cos 225^@ Cos 225^@ ...

Find the value of `Cos 225^@`
`Cos 225^@` का मान ज्ञात कीजिए

A

`-0.7071 `

B

`-0.866 `

C

`0.7071`

D

`0.866 `

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PINNACLE-TRIGONOMETRY-EXERCISE
  1. (sin theta +cos theta )^2=2, 0^@< theta <90^@, then the value of theta...

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  2. If cosecA =25/7, then what is the value of Tan A? यदि cosecA =25/7,...

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  3. Find the value of Cos 225^@ Cos 225^@ का मान ज्ञात कीजिए

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  4. If cot theta =80/39, find the value of cosec theta. यदि cot theta =8...

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  5. If sin theta =4/5, find the vlaue of sin3 theta . यदि sin theta =4/5...

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  6. If tan a=2/sqrt13, then the value of (cosec^2 a+2sec^2 a)/(cosec^2 a-3...

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  7. If a sin theta+b cos theta=c, then a cos theta- b sin theta is equal t...

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  8. (tan A+tan B-tan C+tan A tan B tan C)/(1-tan A tan B+tan B tan C+tan C...

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  9. The value of (Sin30^@ Cos60^@+ Cos45^@ Sin45^@)/(tan60^@ Cot30^@) is: ...

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  10. If (sin x + cos x)/(sin x - cos x) = (6)/(5) , then the value of (ta...

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  11. If sin x = (3)/(5), 0 le x le 90^(@), then the value of cot x.sec x...

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  12. If 2 cot theta =3, then (sqrt13 Cos theta -3tan theta )/(3tan theta + ...

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  13. If 2x= sin theta and 2/x=cos theta , then the value of 4(x^2+1/x^2) i...

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  14. If x = tan40^@, then the value of 2tan 50^@ will be: यदि x = tan40^@...

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  15. (sqrt(Cosecx-1))/(sqrt(Cosecx+1)) is equal to: (sqrt(Cosecx-1))/ (sq...

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  16. The value of (Cos29^@ cosec61^@ tan45^@+2sin35^@ sec55^@)/(3sin^2 42^@...

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  17. If x sin30^@ cos60^@= sin45^@. cos45^@, then the value of x is: यदि ...

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  18. The value of (cosec^2 30^@ sin^2 45^@ +sec^2 60^@)/(tan60^@ cosec^2 45...

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  19. cos A(sec A-cos A)(cot A+tan A) =?

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  20. If sin 3A=cos(A+10), where 3A is an acute angle, then what is the valu...

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