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OBJECTIVE RD SHARMA-TRIGONOMETRIC RATIOS AND IDENTITIES-Exercise
- If A +B+C= pi and m/C is obtuse then tan A. tan B is
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- If 0 < theta < 2pi, then the intervals of values of ? for which 2si...
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- If tantheta=x-1/(4x), then sectheta-tantheta is equal to
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- If sectheta=x+1/(4x), then s e ctheta+t a ntheta= x ,1/x (b) 2x ,1/(...
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- If piltthetalt 2pi, then sqrt((1+costheta)/(1-costheta)) is equal to
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- If theta lies in the second quadrant, then the value sqrt(((1-sinth...
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- sin^2 theta =(x+y)^2/(4xy) where x,yinR gives theta if and only if
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- sec theta=(a^(2)+b^(2))/(a^(2)-b^(2)), where a, binR, gives real balue...
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- If 0^@ltthetalt180^@ then sqrt(2+sqrt(2+sqrt(2+...+sqrt(2(1+costheta))...
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- sin65^(@)+sin43^(@)-sin29^(@)-sin7^(@) is equal to
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- If sec alpha and cosec alpha are the roots of the equation x^(2)-ax+b=...
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- The value of the expression 3(sinx-cosx)^(4)+4(sin^(6)x+cos^(6)x)+6(s...
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- If cos(alpha+beta)sin(gamma+delta)=cos(alpha-beta)sin(gamma-delta) the...
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- sin^(2)5^@+sin^(2)10^@+sin^(2)15^@ +.......+sin^(2)85^@ + sin^(2)90^@=
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- If sinx+sin^2x=1, then find the value of cos^(12)x +3cos^(10)x + 3 cos...
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- If ABCD is a cyclic quadrilateral, then the value of cosA-cosB+cosC-co...
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- If ABCD, is a cycling quadrilateral such that tanA-5=0and 5cosB+3=0, t...
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- If sin (picot theta)=cos (pi tantheta), then
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- The value of sinx siny sin(x-y)+sinysinz sin(y-z) +sinz sinx sin(z-x)+...
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- If ABCD is a convex quadrilateral such that 4 sec A+5 =0 then the quad...
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