RD SHARMA ENGLISH-TRIGONOMETRIC RATIOS-All Questions
- In a DeltaA B C right angled at C , if tanA=1/(sqrt(3)) , find the...
01:43
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- The altitude A D of a Delta A B C , in which /A obtuse and, A D=10c...
06:08
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- A rhombus of side 20cm has two angles of 60^0 each. Find the length of...
02:45
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- A B C is a right triangle, right angled at Cdot If A=30^0a n dA B=40 u...
03:14
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- Evaluate the following: (cos37^0)/(sin53^0) (ii) (tan54^0)/(cot36^0)...
03:48
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- Find acute angles Aa n dB , if sin(A+2B)=(sqrt(3))/2a n dcos(A+4B)=0,A...
03:27
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- In an acute angled triangle A B C , if tan(A+B-C)=1 and ,sec(B+C-A)=2,...
03:20
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- If each of alpha, betaa n dgamma is a positive acute angle such that s...
08:34
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- In a A B C , right angled at A , if A B=12 ,A C=5 and B C=13 , find a...
01:51
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- If cosB=1/3, find the other five trigonometric ratios.
02:47
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- In a A B C , right angled at A , if A B=5,A C=12a n dB C=13 , find si...
02:53
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- If sintheta=(a^2-b^2)/(a^2+b^2) , find the values of other five trigo...
04:20
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- If cos e cA=sqrt(10), find other five trigonometric ratios.
04:18
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- If tanA=sqrt(2)-1 show that sinAcosA=(sqrt(2))/4
05:07
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- If cos e cA=2, find the value of 1/(tanA)+(sinA)/(1+cosA)
01:53
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- Evaluate the following: (i) sin39^0-cos51^0 (ii) cos e c25^0-sec65^0 ...
05:18
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- The value of (tan55^0)/(cot35^0)+cot1^0cot2^0cot3^0cot90^0,i s -2 (b)...
01:29
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- If A + B is 90^@, then ( tan A. tan B + tan A. cot B)/ (Sin A. Sec B)...
04:05
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- If (xcos e c^2 30^0sec^2 45^0)/(8cos^2 45^0sin^2 60^0)=tan^2 60^0-tan^...
01:56
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- The value of (cos(90^0-theta)sec(90^0-theta)tantheta)/(cos e c(90^0-t...
05:28
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