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HIMALAYA PUBLICATION-MEASUREMENT OF ANGLES, TRIGONOMETRIC RATIOS AND RELATION BETWEEN SIDES AND ANGLES OF A TRIANGLE-QUESTION BANK
- If sin theta(1)+sin theta(2)+sin theta(3)=3 then cos theta(1)+cos thet...
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- If sec x=P and cosec x=Q then
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- If tan theta+sec theta=sqrt(3), 0 lt theta lt pi then theta=
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- log tan 1^(circ)+log tan 2^(circ)+... .+log tan 89^(circ)=
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- The value of e^(log(10) tan 1^(o) +…. + log(10) tan 89^(o) is
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- cos ^(2) 5^(circ)+cos ^(2) 10^(circ)+cos ^(2) 15^(circ)+….+cos ^(2) 90...
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- The value of cot 5^(circ) . cot 10^(circ) .. . cot 85^(circ) is
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- cot 7 (1)/(2)^(circ)=
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- If x . tan 45^(circ) . cos 60^(circ)=sin 60^(circ) cot 60^(circ), then...
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- (sin 70^(@) + cos 40^(@))/(cos 70^(@) + sin 40^(@)) =
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- sin 47^(circ)+sin 61^(circ)-sin 11^(circ)-sin 25^(circ)=
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- sqrt(3) cot 20^(circ)-4 cos 20^(circ)=
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- For A=133^(circ), 2 cos (A/2)=
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- If 0^(circ) lt theta lt 180^(circ) then sqrt(2+sqrt(2+sqrt(...+sqrt(2(...
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- cos ^(2) 73^(circ)+cos ^(2) 47^(circ)+cos 73^(circ) . cos 47^(circ)=
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- cos 40^(circ)+cos 80^(circ)+cos 160^(circ)+cos 240^(circ)=
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- cos ^(4) (pi)/(8)+cos ^(4) (3 pi)/(8)+cos ^(4) (5 pi)/(8)+cos ^(4) (7 ...
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- sin ^(2) (pi)/(18)+sin ^(2) (pi)/(9)+sin ^(2) (7 pi)/(18)+sin ^(2) (4 ...
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- sin 12^(circ) .sin 48^(circ) .sin 54^(circ)=
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- The value of sin 20^(circ) sin 40^(circ) sin 60^(circ) sin 80^(circ) i...
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