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AAKASH SERIES-COMPOUND ANGLES-EXERCISE - I
- cos(n+1) alpha * cos(n-1)alpha + sin (n+1)alpha * sin (n-1) alpha =
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- If 0 lt theta lt pi//2 and 2 sin theta = sqrt(3) cos 10^(@) + sin 10^(...
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- (Tan225^(@)-Cot81^(@).Cot69^(@))/(Cot261^(@)+Tan21^(@))=
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- If tan 20^@ =p , " then " (tan 160^@ - tan 110^(@))/(1+ tan 160^(@) ta...
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- If Tantheta=(Cosalpha-Sinalpha)/(Cosalpha+Sinalpha)andtheta is acute t...
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- If tan (A+B)=p , tan (A-B)=q , " then " cot 2B=
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- If tan A + tan B=p and cot A+ cot B=q then cot (A+B)=
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- Tan75^(@) - Cot75^(@) =
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- "cosec" 15^(@) + sec 15^(@) =
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- Prove that sin^(2)52 1/2-sin^(2)22 1/2.
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- cos^(2)(""(pi)/(6) + theta ) -sin^(2)""((pi)/(6) - theta ) =
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- Evaluate sum(sin (A+B)sin(A-B))/(cos^(2)A cos^(2)B): if non of cos A ,...
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- If tan 69^(@) + tan 66^@ - tan 69^(@) tan66^@=2k , then the value of ...
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- Find the value of tan 100^(@)+tan125^(@)+tan 100^(@). Tan 125^(@).
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- (tan80^(@)-tan10^(@))/(tan70^(@))
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- ((1+Tan33^(@))(1+Tan12^(@)))/((1+Tan18^(@))(1+Tan27^(@)))=
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- If A+B=225^(@) than prove that (cot A)/(1+cotA). (cot B)/(1+cotB)=(1)/...
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- If A+B = 135^(@) then (1-TanA) (1- TanB) =
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- (1-Cot200^(@))(1-Cot25^(@)) =
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- Show that cos 35^(@) + cos 85^(@) + cos 155^(@) = 0
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