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AAKASH SERIES-MULTIPLE & SUBMULTIPLE ANGLES-ADDITIONAL EXERCISE
- If sin A = (336)/(625) " where " 450^(@) lt A lt 540^(@) , " then " s...
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- If 0ltalphaltpi/2 and cos^(6)alpha+sin^(6)alpha+Ksin^(2)2alpha=1. Then...
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- If tan3A=k tanA, Then S.T (sin3A)/(sinA)=(2K)/(K-1)
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- If 2 tanA+cotA=tanB prove that 2tan(B-A)=cotA
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- If x+1/x=2costheta then show that x^(3)+1/x^(3)=2cos3theta
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- Show that cos^(4)theta-sin^(4)theta=cos2theta
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- If tantheta=x then show that sin2theta +tan2theta=(4x)/(1-x^(4))
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- If sin theta=-4/5,180^(@)ltthetalt270^(@) then find "sin"theta/2, "cos...
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- If 0 lt alpha , beta lt pi//4, cos ( alpha + beta )=4//5 , sin (alpha...
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- Show that (1+"cos"pi/9).(1+"cos"(3pi)/9).(1+"cos"(5pi)/9).(1+"cos"(7...
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- tan(pi/4+A)-tan(pi/4-A)=
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- Prove that (Cosalpha-Cosbeta)^(2)+(Sinalpha-Sinbeta)^(2)=4Sin^(2)((alp...
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- Show that cottheta+cot(240^(@)+theta)+cot(300^(@)+theta)=3 cot3theta
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- Prove that sin ^(2) ((pi)/(8)+(A)/(2)) - sin ^(2) ((pi)/(8) - (A)/(2))...
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- If alpha, beta are solutions of a cos theta + b sin theta = c where a,...
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