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ALLEN-TRIGONOMETRIC RATIOS AND IDENTITIES-All Questions
- For the equation sin3theta+cos3theta=1-sin2theta (A) tantheta = 1 is...
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- cosec10^@-sqrt3 sec 10^@=
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- 4\ cos\ 20^0\ -sqrt(3)\ cot\ 20^0\ =
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- (2cos 40^0-cos 20^0)/(sin 20^0)=
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- Statement 1 is True: Statement 2 is True; Statement 2 is a correct ...
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- Statement 1 is True: Statement 2 is True; Statement 2 is a correct ...
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- Statement 1 is True: Statement 2 is True; Statement 2 is a correct ...
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- The value of cos(2pi)/7cos(4pi)/7cos6/7pi is a.-1//2 b. \ 1//2 c.\ 1//...
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- If alpha=pi/(15),\ then the value of prod(r=1)^7cos ralpha is- a.1/(1...
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- Prove that: s inpi/(14)s in(3pi)/(14)s in(5pi)/(14)s in(7pi)/(14)s in(...
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- Which of the following is correct? (A) sin1^@>sin1 (B) sin1^@<sin1 (C)...
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- Find the degrees and radians the angle between the hour hand and the ...
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- One angle of a triangle is (4x)/3 grades and another is 3x degrees, wh...
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- If cos(y-z)+cos(z-x)+cos(x-y)=-3/2, prove that cos x + cos y + cos z =...
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- Prove that 2 sin^2 beta + 4 cos(alpha + beta) sin alpha sin beta + co...
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- For all value of alpha,beta,gamma prove that ,cosalpha+cosbeta+cosgamm...
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- If cos(alpha+beta)=4/5; sin(alpha-beta)=5/13 and alpha,beta lie betwee...
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- sin^4(pi/16)+sin^4(3pi/16)+sin^4(5pi/16)+sin^4(7pi/16)=3/2
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- If costheta=(cosalpha-e)/(1-e cosalpha),\ prove that tantheta/2=+-sqr...
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- Prove that, cot 7 1/2 ^@ or tan 82 1/2 ^@ = (sqrt(3)+sqrt(2))(sqrt(2)+...
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