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The expression (tan(x-pi/2)cos((3pi)/2+x...

The expression `(tan(x-pi/2)cos((3pi)/2+x)-sin^3((7pi)/2-x))/(cos(x-pi/2)tan((3pi)/2+x)` is equal to

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The expression (tan(x-(pi)/(2)).cos((3pi)/(2)+x)-sin^(3)((7pi)/(2)-x))/(cos(x-(pi)/(2)).tan((3pi)/(2)+x)) simplifies to

The expression (tan(x-(pi)/(2))cos((3 pi)/(2)+x)-sin^(3)((7 pi)/(2)-x))/(cos(x-(pi)/(2))tan((3 pi)/(2)+x)) is equal to

The value of the expression cos((pi)/(2)-x)cos((3 pi)/(2)+x)-cos(pi-x)cos(2 pi-x)

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cos((3pi)/(2) +x) cos(2pi+x)[cot(3pi)/(2)-x+cot(2pi+x)]=1

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(cos(pi-x)cos(-x))/(sin(pi-x)cos(pi/2+x))=cot^(2)x

The period of sin((pi x)/(2))+cos((pi x)/(3)) is

if L=lim_(x rarr pi)(tan(pi cos^(2)x))/((x-pi)^(2)) then (L)/(pi) is equal to:

ALLEN-TRIGONOMETRIC RATIOS AND IDENTITIES-All Questions
  1. To find sum of tangents of a series of angles, the angles being in Ari...

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  2. S=cosecx+cosec 2x+cosec 4x+…+cosec 2nx=cot(x/2)−cot2nx

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  3. The expression (tan(x-pi/2)cos((3pi)/2+x)-sin^3((7pi)/2-x))/(cos(x-pi/...

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  4. The values of cos^2 73^0+cos^2 47^0-sin^2 43^0+sin^2 107^0 is equal t...

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  5. The expression (sin 22^0cos8^0+cos 158^0cos98^0)/(sin 23^0cos7^0+cos 1...

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  6. The two legs of a right triangle are sin theta +sin ((3pi)/2-theta) an...

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  7. If tantheta=sqrt(a/b)where a , b are positive reals then the value o...

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  8. The expression (sin(alpha+theta)-"sin"(alpha-theta))/(cos(beta-theta)-...

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  9. (The tangents of two acute angles are 3 and 2, The sine of twice their...

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  10. Exact value of cos 20^0+2sin^2\ \ 55^0-sqrt(2)sin65^0\ is- a.1 b. 1/(...

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  11. If cos(theta+phi)=mcos(theta-phi) ,then tantheta is equal to a.((1+m)...

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  12. If sintheta+cosectheta=2 , then the value of sin^8theta+cosec^8theta i...

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  13. If the expression 4sin5alphacos3alphacos2alpha s expressed as the ...

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  14. find the value of the expression 3[sin^4(3pi/2-alpha)+sin^4(3pi+alph...

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  15. If costheta=1/2(a+1/a)\ t h e n\ cos 3theta in term of ' a^(prime)= a...

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  16. The product cot123^@*cot133^@*cot137^@*cot147^@, when simplified is e...

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  17. If A+B+C=pi\ &sin(A+C/2)=ksinC/2, t h e ntanA/2tanB/2= a.(k-1)/(k+1) ...

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  18. The value of the expression (1-4sin 10^0\ sin 70^0)/(2sin 10^0\ ) is-...

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  19. Which of the following number (s) is/are rational ? a.sin 15^0 b....

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  20. If alpha+beta+gamma=2pi,\ then- a.tanalpha/2+(tan\ beta)/2+tangamma...

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