CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
- In A B C , if (sinA)/(csinB)+(sinB)/c+(sinC)/b=c/(a b)+b/(a c)+a/(b c...
05:59
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- Column I Column II The value of ((4+sec20^0)/(cosec20^0))^2 , is p....
13:38
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- Find the value of cospi/7+cos(2pi)/7+cos(3pi)/7+cos(4pi)/7+cos(5pi)/7+...
03:11
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- If sin A=3/5,w h e r e0^0ltAlt90^0 , then find the values of sin2A , c...
04:27
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- Prove that (cosA-cosB)^2+(sin A-sin B)^2=4sin^2((A-B)/2)
03:21
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- Let f(x)=2 cosec 2x + sec x+cosec x, then the minimum value of f(x) fo...
06:53
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- If tanalpha=1/7,sinbeta=1/(sqrt(10)), prove thatalpha+2beta=pi/4 , whe...
04:27
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- Prove that (1+sin2theta)/(1-sin2theta)=((1+tantheta)/(1-tantheta))^2
02:42
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- Prove that (1-tan^2(pi/4-A))/(1+tan^2(pi/4-A))=sin2Adot
01:44
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- If alpha+beta=90^0 , find the maximum and minimum values of sinalphas...
02:31
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- Find the maximum and minimum values of cos^2theta-6sinthetacostheta+3s...
05:04
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- If p(x)=sinx(sin^3x+3)+cosx(cos^3x+4)+(1/2)sin^2 2x+5, then find the ...
07:16
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- The value of cos e cpi/(18)-4sin(7pi)/(18) is
02:24
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- If A+B+C=(3pi)/2, t h e ncos2A+cos2B+cos2C is equal to (a) 1-4cos Ac...
05:09
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- Prove that: (costheta)/(1+sintheta)=tan(pi/4-theta/2)
03:04
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- If A,B,C, are the angles of a triangle such that cot(A/2)=3tan(C/2), ...
05:08
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- The maximum value of cos^2(45^0+x)+(sinx-cosx)^2 is
03:20
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- Let alpha,betaa n dgamma be some angles in the first quadrant satisfyi...
04:49
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- If tanx=ntany ,n in R^+, then the maximum value of sec^2(x-y) is eq...
09:00
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- Prove that: (1+sintheta-costheta)/(1+sintheta+costheta)=tantheta/2
06:11
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