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AAKASH SERIES-DEMOIVRE'S THEOREM-EXERCISE -II
- If cosalpha+cosbeta+cosgamma=0=sin alpha+sinbeta+singamma then cos^2al...
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- If cosalpha+cosbeta+cosgamma=0=sinalpha+sinbeta+singamma then cos(2alp...
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- If cosalpha+cosbeta+cosgamma=0=sinalpha+sinbeta+singamma then x^(sin(2...
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- If cosalpha+coabeta+cosgamma=0=sinalpha+sinbeta+singamma then cos(alph...
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- If A+B+C=pi and cosA+cosB+cosC=0=sinA+sinB+sinC then cos3A+cos3B+cos3C...
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- If x^6+1=0, then x =
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- find the roots x^(11)-x^7+x^4-1=0
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- The number of common roots of 15th and of 25th roots of unity are
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- The common roots of the equation x^(12)-1=0,x^4+x^2+1=0 are
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- The product of all nth roots of unity (n gt 1) is
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- The product of the distinct (2n)^(th) roots 1+isqrt3 is
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- If alpha is a non real root of x^6=1 then (alpha^5+alpha^3+alpha+1)/(a...
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- If 1,alpha1,alpha2,…..alpha(n-1) are the n^(th) roots of unity then (1...
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- If 1,alpha1,alpha2,…..alpha(n-1) are the n^(th) roots of unity and n i...
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- If alpha is an n^(th) root of unity then prove that 1+2alpha+3alpha^2+...
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- Statement-I : ((costheta+isintheta)^5(cos3theta-isin3theta)^6)/((co...
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- Statement-I : If xn=cos(pi//2^n)+isin (pi//2^n) then x1.x2.x3…..=-...
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- Statement-I : If e^(itheta)=costheta+isintheta then for the DeltaABCe^...
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- The ascending order of the values of z1=(1+i)^4,z2=(sqrt3+i)^(12),...
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- The descending order of the values of z1=((sqrt3)/(2)i+1/2)^6,z2=(...
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