"Tan"^(-1)1/4+"Tan"^(-1)2/9=...

`"Tan"^(-1)1/4+"Tan"^(-1)2/9=`

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AAKASH SERIES-INVERSE TRIGONOMETRIC FUNCTIONS-EXERCISE 7.1 ( SHORT ANSWER QUESTIONS)

sin(2"Tan"^(-1)3/4)=
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Show that tan[2 tan^(-1)((sqrt(5)-1)/(2))]=2
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"Tan"^(-1)1/4+"Tan"^(-1)2/9=
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Prove that 2sin^-1(3/5)-Cos^-1""5/13=Cos^-1(323/325).
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Prove that "Sin"^(-1)4/52"+Tan"^(-1)1/3=(pi)/2
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If alpha = Tan^(-1)((sqrt(1+x^2)-sqrt(1-x^2))/(sqrt(1+x^2)+sqrt(1-x^2)...
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If Cos^(-1)p+Cos^(-1)q+Cos^(-1)r = pi then, P.T. p^(2)+q^(2)+r^(2) = 2...
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If Sin^(-1)x+Sin^(-1)y+Sin^(-1)z=pi then prove that n xsqrt(1-x^(2))+y...
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If Tan^(-1)x+Tan^(-1)y + Tan^(-1)z = (pi)/2, then prove that xy + yz +...
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If Tan^(-1)x+Tan^(-1)y + Tan^(-1)z = (pi)/2, then prove that xy + yz +...
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tan[2Tan^(-1)((sqrt(1+x^(2))-1)/x)]=
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Prove that sin[Cot^(-1) (2x)/(1-x^2)+Cos^(-1)((1-x^(2))/(1+x^(2)))]=1.
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If Cos^(-1)p+Cos^(-1)q+Cos^(-1)r = pi then, P.T. p^(2)+q^(2)+r^(2) = 2...
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Id a,b,c are distinct non-zero real numbers having the same sign. Prov...
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solve the following equations cos(2sin^(-1)x)=1/9
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solve the following equations tan(arc"cos"1/x)=sin(arc"cot"1/2),x!=0
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If "Cos"^(-1)3/5-"Sin"^(-1)4/5=Cos^(-1)x then x =
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If "Sin"^(-1)5/x+"Sin"^(-1)12/x=pi/2, then x =
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solve the following equations sin^(-1)x+sin^(-1)2x=(pi)/3
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Solve the following equations : sin^(-1)(1-x)-2sin^(-1)x=(pi)/2 the...
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