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If sum(r=1)^(n)((tan 2^(r-1))/(cos2^(r )...

If `sum_(r=1)^(n)((tan 2^(r-1))/(cos2^(r )))=tanp^(n)-tan q`, then find the value of `(p+q)`.

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VIKAS GUPTA (BLACK BOOK)-COMPOUND ANGLES-Exercise-5 : Subjective Type Problems
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  9. If tan20^0+tan40^0+tan80^0-tan60^0= lambdasin40^0,

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  10. If K^(@) lies between 360^(@) and 540^(@) and K^(@) satisfies the equa...

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  11. If cos20^(@)+2sin^(2)55^(@)=1+sqrt(2)sinK^(@), K in (0, 90)," then "K=

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  12. If the value of cos((2pi)/7) + cos((4pi)/7)+cos((6pi)/7)+cos((7pi/7))=...

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  15. If the value of cos((2pi)/7) + cos((4pi)/7)+cos((6pi)/7)+cos((7pi/7))=...

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  16. If cosA=(3)/(4) and k sin ((A)/(2))sin((5A)/(2))=(11)/(8). Find k.

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  17. Find the least value of the expression 3sin^(2)x+4 cos^(2)x.

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  18. Q. If tan alpha and tan beta are the roots of equation x^2-12x-3=0, th...

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  19. The value of cos24^0/(2tan33^0sin^2(57^0))+sin162^0/(sin18^0-cos18^0ta...

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  20. Find the value of tantheta(1+sec2theta)(1+sec4theta)(1+sec8theta), whe...

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