Recommended Questions
- cos(pi/4 + x) + cos(pi/4-x) = है।
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- Prove that cos(pi/4+x)+cos(pi/4-x)=sqrt(2)cosx.
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- Prove that:cos(pi/4-x)cos(pi/4-y)-sin(pi/4-x)sin(pi/4-y)=sin(x+y)
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- cos(pi/4-x)cos(pi/4-y)-sin(pi/4-x)sin(pi/4-y)=sin(x+y)
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- int(0)^(pi//2)(cos^(4)x)/((sin^(4)x+cos^(4)x))dx=(pi)/(4)
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- सिद्ध कीजिए : cos((pi)/(4)+x)+cos ((pi)/(4)-x)=sqrt(2) cos x
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- cos .((pi)/(4)-x) cos ((pi)/(4)-y) –sin ((pi)/(4) –x) sin ((pi)/(4)-y)...
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- underset(x rarr (pi)/(4))(lim) (cot^(3) x - tanx)/(cos (x + (pi)/(4)))...
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- Prove that cos (pi/4-x) cos (pi/4-y)- sin (pi/4-x) sin(pi/4-y) =si...
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