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RD SHARMA-TRIGONOMETRIC RATIOS-All Questions
- If (xcos e c^2 30^0sec^2 45^0)/(8cos^2 45^0sin^2 60^0)=tan^2 60^0-tan^...
01:47
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- The value of (cos(90^0-theta)sec(90^0-theta)tantheta)/(cos e c(90^0-t...
01:13
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- If tan2A=cot(A-18^0), where 2A is an acute angle, find the value of A.
01:06
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- Prove the following: sinthetasin(90^0-theta)-costhetacos(90^0-theta)=0
03:11
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- Find an acute angle theta , when (costheta-sintheta)/(costheta+sinthet...
03:20
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- If sin(A+B)=1 and cos(A-B)=(sqrt(3))/2, then find A and B dot
01:48
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- Evaluate each of the following: cot 12^0cot 38^0cot52^0cot60^0cot78^0 ...
03:45
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- Prove that: tan10^0tan15^0tan75^0tan80^0=1 tan1^0tan2^0tan3^0tan89^0=...
03:23
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- If A+B=90^0, prove that sqrt((tanAtanB+tanAcotB)/(sinAsecB)-(sin^2B)/(...
03:50
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- If sin5theta=cos4theta, whre 5thetaa n d4theta are acute angles, find ...
02:58
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- If tantheta+1/(tantheta)=2 , find the value of tan^2theta+1/(tan^2thet...
01:23
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- Evaluate each of the following in the simplest form: cos e c30^0+cot45...
03:49
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- In a right triangle B C , right angled at B , the ratio of A BtoA C is...
02:40
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- In Figure, A D=D B \ and \ /B is a right angle. Determine. (a)\ sin th...
07:05
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- Find the value of x in each of the following: (i)tan3x=sin45^0cos45^...
05:13
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- If theta is an acute angle and tantheta+cottheta=2, find the value o...
02:20
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- Prove that: (cos30^0+sin60^0)/(1+cos60^0+sin30^0)=(sqrt(3))/2
01:23
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- Find the value of theta in each of the following: (i)2sin2theta=sqrt...
03:27
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- An equilateral triangle is inscribed in a circle of radius 6 cm. Find ...
01:46
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- If tanA=1 and tanB=sqrt(3),e v a l u a t ecosAcosB-sinAsinBdot
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