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PATHFINDER-TRIGONOMETRIC RATIOS AND IDENTITIES-QUESTION BANK
- If (sin(theta+alpha))/(cos(theta-alpha))=(1-m)/(1+m) prove that tan((p...
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- Prove that cosalpha+cosbeta+cosgamma+cos(alpha+beta+gamma)= 4cos((alph...
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- prove that (sinA+sin3A+sin5A+sin7A)/(cosA+cos3A+cos5A+cos7A)=tan4A
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- show that (sinx)/(cos3x)+(sin3x)/(cos9x)+(sin9x)/(cos27x)=1/2(tan27x-t...
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- If in a triangle ABC cot(A/2)+cot(C/2)=2cot(B/2) then find the minimum...
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- If in triangle ABC cosA+cosB+cosC=3/2 then prove that triangle is equi...
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- If tan(alpha/2)=sqrt((a-b)/(a+b)) tan(beta/2) prove that cosalpha=(aco...
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- If tanalpha=1/7 ,sinbeta=1/sqrt10 prove that alpha+2beta=(pi/4) where ...
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- Show that 2^(sinx)+2^(cosx)ge2^(1-(1/sqrt2))
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- (sin(-660^@)tan(1050^@).sec(420^@))/(cos(225^@)cosec(315^@)cos(510^@))...
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- If A+B+C=180^@ and tanA +tan B+tan Cgek where A,B,C are acute angles t...
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- The value of sin theta and tan theta if cos theta=(-12/13) and theta l...
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- The expression 3{sin^4((3pi/2)-alpha)+sin^4(3pi-alpha)} -2{sin^6(pi/2+...
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- cos 510^@cos330^@+sin 390^@cos120^@=
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- If ABCD is a cyclic quadrilateral then the value of cosA+cosB+cos C+co...
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- If (secA-tan A)(secB -tan B)(sec C-tan C)(sec A+tan A)(sec B+tan B)(se...
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- The value of the expression 1-sin^2y/(1+cosy)+(1+cosy)/siny-siny/(1-co...
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- sin^2A+sin^2(A-B)+2sinAcosBsin(B-A) is equal to
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- Let A and B denote the statements A:cos alpha+cos beta+cos gamma=0,B:s...
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- If tan beta=(nsin alphacosbeta)/(1-ncos^2alpha) then tan(alpha+beta) i...
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