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MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS OF COMPOUND ANGLES AND FACTORIZATION FORMULAE-MCQs
- For any angle theta, costheta+cos(120^@+theta)+cos(120^@-theta)=.........
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- cos^2theta+cos^2(120^@+theta)+cos^2(120^@-theta)=.....
02:40
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- If (sin8theta.costheta-sin6theta.cos3theta)/(cos2theta.costheta-sin3th...
02:50
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- sqrt(3)cot2 0^(@)-4cos2 0^(@)=
03:04
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- If A,B,C are the angles of a triangle such that tan A=1 and tan B=2, t...
00:57
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- If alpha is any real nubmer then: (sin^4alpha+sin^2alpha.cos^2alpha+co...
01:03
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- If alpha is any real number, then : (sinalpha+cosecalpha)^2+(cosalpha+...
02:10
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- If Pn=cos^ntheta+sin^ntheta, show that : 2P6-3P4+1=0.
02:37
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- Evaluate : sin163^@.cos347^@+sin73^@.sin167^@.
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- cos^4(pi/8)+cos^4((3pi)/8)+cos^4((5pi)/8)+cos^4((7pi)/8)=
06:00
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- 1/cos290^@+1/(sqrt3 sin250^@)=
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- If tan(pi.costheta)=cot(pi.sintheta), then: cos((pi)/(4)-theta)=..... ...
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- (sin^2A-sin^2B)/(sinA.cosA-sinB.cosB)=....
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- If x^0=((13pi)/(6))^c, then: x=(a) 300^@ (b) 930^@ (c) 309^@ (d) 390^@
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- If y^c=27^@, then: y= (a) ((20pi)/3)^c (b) ((20pi)/3) (c) ((3pi)/20) (...
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- The value of cot5^(@)*cot15^(@)* cot 25^(@)* cot 35^(@)* cot45^(@) * c...
02:38
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- Find the value of sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+..............
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- If tanalpha=(1)/(3)andtanbeta=(1)/(2), then: tan(alpha+beta)=
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- If cos e ctheta+cottheta=(11)/2 , then t a ntheta=
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- If tantheta=(-1)/(sqrt5)andtheta lies in the fourth quadrant, then: co...
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