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If cosA=4/5 , find other trigonometri...

If `cosA=4/5` , find other trigonometric ratios.

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RD SHARMA-TRIGONOMETRIC RATIOS-All Questions
  1. If /B and /Q are acute angles such that sinB=sinQ , then prove t...

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  2. If sinA=2/3 , find other trigonometric ratios.

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  3. If cosA=4/5 , find other trigonometric ratios.

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  4. If tantheta=11 , find other trigonometric ratios

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  5. If sintheta=(11)/(15) , find other trigonometric ratios

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  6. Given tanalpha=5/(12)\ , find other trigonometric ratios

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  7. sintheta=(sqrt(3))/2 , find other trigonometric ratios

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  8. If costheta=7/(25) , find other trigonometric ratios

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  9. If Value of tantheta=8/(15) , find other trigonometric ratios

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  10. If cottheta=(12)/5 , find other trigonometric ratios

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  11. If sectheta=(13)/5 , find other trigonometric ratios

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  12. If cos e cA=sqrt(10), find other five trigonometric ratios.

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  13. costheta=(12)/(15) is given, find other trigonometric ratios

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  14. In a /\A B C , right angled at B , A B=24 c m , B C=7c m . Determin...

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  15. In Fig., find tanP and cotR . Is tanP=cotR ?

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  16. If sinA=9/(41) , compute cosA and tanA .

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  17. given : 15 cotA = 8 find sinA and secA

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  18. In /\P Q R , right angled at Q ,\ P Q=4c m and R Q=3c m . Find the ...

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  19. If cottheta = 7/8, evaluate . 1.) ((1+sintheta)(1-sintheta))/((1-cost...

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  20. If 3cot A=4 , check whether (1-tan^2A)/(1+tan^2A)=cos^2A-sin^2A or not...

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