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RD SHARMA-TRIGONOMETRIC RATIOS-All Questions
- 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
02:08
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- Find(sin18^0)/(cos72^0)+(sin22^0)/(cos68^0)-(cos38^0cos e c52^0)/(tan1...
03:39
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- If s e c4A=cos e c(A-20^@) , where 4A is an acute angle, find the ...
01:41
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- Evaluate each of the following: (a) cos(40^0-theta)-sin(50^0+theta)...
08:13
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- Evaluate : 4(sin^4 30^0+cos^4 60^0)-2/3(sin^2 60^0-cos^2 45^0)+1/2tan...
03:28
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- Evaluate : (sin50^0)/(cos40^0)+(cos e c40^0)/(sec50^0)-4cos50^0cos e ...
03:31
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- Evaluate : tan35^0tan40^0tan45^0tan50^0tan55^0
03:05
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- Evaluate : cos e c(65^0+theta)-sec(25^0-theta)-tan(55^0-theta)+cot(...
05:06
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- Evaluate : tan7^0tan23^0tan60^0tan67^0tan83^0
01:55
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- Evaluate : (2sin68^0)/(cos22^0)-(2cot15^0)/(5tan75^0)-(3tan45^0tan20^...
02:55
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- Evaluate : ((3cos55^0) / (7sin35^0))-(4/7)(cos70^0cos e c20^0)/(tan5^0...
06:54
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- Prove the following: (cos(90^0-theta)sec(90^0-theta)t a ntheta)/(cos ...
01:13
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- Prove the following: (tan(90^0-A)cotA)/(cos e c^2A)-cos^2A=0
02:40
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- Prove the following: sinthetasin(90^0-theta)-costhetacos(90^0-theta)=...
03:11
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- In a /\A B C , right angled at B , if A B=4 and B C=3 , find all t...
04:54
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- In a /\A B C , right angled at B , if A B=12 and B C=5 , find: (i) ...
04:44
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