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If 13 sin alpha = 12, where pi//2 lt alp...

If 13 `sin alpha = 12,` where `pi//2 lt alpha lt pi, and 3 sec beta = 5,` where `3pi//2 lt beta lt 2pi`, evaluate : `5tan alpha+3 tan^(2)beta.`

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MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MCQs
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  2. If tanA=(sqrt3-1)/(sqrt3+1),"then": cos A=

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  3. If tan theta=1/sqrt7,then (c o s e c^2theta-sec^2theta)/(c o s e c^2th...

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  4. If : tantheta=(1)/(7), "then" : (2sintheta+3costheta)/(3sintheta+4cost...

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  5. If : tantheta+cottheta=2,"then": sintheta+costheta

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  6. If : 2cosA*tanB-2cosA-tanB+1=0, then they measures of angles A and B a...

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  7. If : sin(A-B)=cos(A+B)=(1)/(2), "then" : (A,B)

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  8. If : tan(A+B)=sqrt3 and csc(A-B)=2 "then" : (A,B)=

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  9. (1-costheta)/(1+costheta)+(1+costheta)/(1-costheta)=

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  10. If : (1+sintheta)/(1+costheta)+(1-sintheta)/(1-costheta)=2u.(csctheta-...

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  11. (costheta*csctheta-sintheta*sectheta)/(costheta+sintheta)

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  12. (sin^(2)theta)/(1-cottheta)+(cos^(2)theta)/(1-tantheta)=1+u,"then" : u

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  13. (sin^(3)theta+cos^(3)theta)/(sintheta+costheta)+(sin^(3)theta-cos^(3)t...

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  14. (csctheta-sintheta")(sectheta-costheta)(tantheta+cottheta)=

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  15. (sectheta+tantheta-1)(sectheta-tantheta+1)=

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  16. If : f(x)=sec^(2)x, lt br gt then : (1+tan A *tanB)^(2)+(tan A-tanB)^(...

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  17. If : (sintheta+csctheta)^(2)+(costheta+sectheta)^(2)=tan^(2)theta+cot^...

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  18. If : sin^(4)theta+cos^(4)theta+sin^(2)theta*cos^(2)theta=1-u^(2), "th...

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  19. If : (sintheta+costheta)(1-sintheta*costheta)=sin^(n)theta+cos^(n)thet...

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  20. If : sin^(6)theta+cos^(6)theta=1-3u^(2)+3u^(4), "then" : u =

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  21. If sin theta + sin^(2) theta=1 " then " cos^(2) theta+ cos^(4) theta...

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