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AAKASH SERIES-TRIGONOMERTIC RATIOS-PRACTICE EXERCISE
- cos^(2)5^(@)+cos^(2)10^(@)+cos^(2)15^(@)+.....+cos^(2) 90^(@)=
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- cos^(@)cos2^(@)cos3^(@).......cos179^(@)=
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- tan10^(@) tan 20^(@) tan 30^(@) tan 40^(@) tan 50^(@) tan 60^(@) tan 7...
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- [(Tan ( pi - x) Tan (1.5 pi + x))/(Cos^(2)(x-1.5pi))-(Cos(1.5pi + x))/...
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- If cos A = 3/4 then (2cos A + 3 sin A)/(4 cos A - sin A) =
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- If theta is acute and (1-a^(2)) sin theta =(1+ a^(2)) cos theta , t...
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- If cot theta=-3//4 and theta is not in the second quadrant , then ...
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- If tan 20^(@) = lambda , " then " (tan 250^@ + tan 340^(@))/(tan 200^...
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- 3(sin x + cos x )^(4) + 6(sin x - cos x )^(2) + 4(sin^(6) x + cos^(6) ...
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- If k=( sec A + tan A) ( sec B+ tan B) sec C + tan C)=(sec A - tan A)(s...
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- In Delta le ABC, 3 tan A+4=0 then the quadratic equation whose roots a...
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- If sin theta , cos theta are ther roots of the equation ax^(2)-bx+c...
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- If (x)/(a) cos theta + (y)/(b) sin theta = 1 , (x)/(a) sin theta - (y...
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- If x = h + p Sec alpha, y = k + q cosec alpha then ((p)/(x-h))^(2) +((...
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- If x=a("cosec" theta + cot theta ) , y=b( " cosec " theta - cot theta ...
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- (1+cosec theta - cot theta)/(1+cosec theta + cot theta)=
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- (1)/(sec^(4) alpha ) +(1)/("cosec"^(4) alpha ) +(2)/(sec^(2) alpha + ...
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- ( cos^(3) A + sin^(3) A )/( cos A + sin A ) + (cos^(3) A - sin^(3)A)/(...
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- If cosec theta + cot theta = 1//3 then cosec theta - cot theta =
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- If cosec A = 4x + (1)/(16x) then cosec A + cot A =
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