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TARGET PUBLICATION-FACTORIZATION FORMULAE-COMETITIVE THINKING
- sin47^@+sin61^@-sin11^@-sin25^@=
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- cos A + cos (240^(@) +A)+ cos (240^(@)-A)=
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- The expression cos(10pi)/13+cos(8pi)/13+cos(3pi)/13+cos(5pi)/13 is equ...
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- 2cos ""(pi)/(13)cos""(9pi)/(13)+cos""(3pi)/(13)+cos""(5pi)/(13)=0
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- 2cosx-cos3x-cos5x=
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- 1+ cos 10^(@) + cos 20^(@)+ cso 30^(@)=
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- 1+ cso 56^(@) + cos 58^(@) - cos 66^(@)=
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- (sin 85^(@)-sin 25^(@))/(cos 65^(@))=
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- The value of (sin 55^(@) - cos 55^(@))/(sin 10^(@)) is
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- tan 9^(@) - tan 27^(@) - tan 63^(@) + tan 81^(@)=.................. ??
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- (sin A - sin B)/(cos A+ cos B) is equal to
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- (sin(B+A)+cos(B-A))/(sin(B-A)+cos(B+A)) is equal to
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- If si 4 A - cos 2A = cso 4A - sin 2A (0 lt A lt (pi)/(4)), then the va...
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- If sin x + sin y =1/2 and cos x + cos y = 1 then tan (x + y)
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- If cos x=3, cos y, then 2 tan ((y-x)/(2))=
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- If cosA=mcosB, then
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- The sum S= sin theta + sin 2 theta + …+ sin n theta, equals
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- cos.(2pi)/(7)+cos.(4pi)/(7)+cos.(6pi)/(7)
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- If cosA=3/4, then 32 sin, A/2 sin, (5A)/2= (A) sqrt(11) (B) -sqrt(11) ...
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- sin 12^(@) sin 48^(@) sin 54^(@) is equal to
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