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ALLEN-TRIGONOMETRIC RATIOS AND IDENTITIES-All Questions
- Exact value of cos 20^0+2sin^2\ \ 55^0-sqrt(2)sin65^0\ is- a.1 b. 1/(...
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- If cos(theta+phi)=mcos(theta-phi) ,then tantheta is equal to a.((1+m)...
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- If sin theta+"cosec"theta=2, then the value of sin^(8)theta+"cosec"^(...
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- If the expression 4sin5alphacos3alphacos2alpha s expressed as the su...
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- The expression 3[sin^4(3/2pi-alpha)+sin^4(3pi+alpha)]-2[sin^6(1/2pi+al...
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- If costheta=1/2(a+1/a)\ t h e n\ cos 3theta in term of ' a^(prime)= a...
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- The product cot123^0dotcot133^0dotcot137^0dotcot147^0, when simplified...
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- 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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- If alpha+beta+gamma=2pi, then tanalpha/2tanbeta/2+tangamma/2=tanalpha...
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- If A and C are two angles such that A+C=(3pi)/4 then (1+cotA)(1+cotC)=
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- (log)(t1)(4sin9^0cos9^0)w h e r e\ t1=4sin 63^0cos 63^0\ e q u a l s ...
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- l=((cot^2x.cos^2x)/(cot^2x-cos^2x))^2 and m=a^(log(sqrt(a))[2cos(y/2)]...
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- If (a+b)tan(theta-varphi)=(a-b)tan(theta+varphi),\ t h e n(sin(2theta)...
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- Let m=t a n3\ a n d\ n=s e c6,\ then which of the following statement...
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- (sin^3theta-cos^3theta)/(sintheta-costheta)-(costheta)/(sqrt(1+cot^2th...
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- If sce A=17/8 and cosec B=5/4, then sec(A+B) can have the value equal ...
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- It is known that sin beta= 4/5 and 0 lt beta lt pi, then the value of ...
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- In a Delta ABC, angle B lt angle C and the values of B and C satisfy t...
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- Prove that ((cos A + cos B)/( sin A - sin B )) ^(n) + ((sin A + sin B ...
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- If cos(A-B)=3/5 and tanA tanB=2, then a.cos A cosB=1/5 b. co...
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