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Solve for x 3sin^-1 (2x/1+x^2)-4cos^-1(1-x^2/1+x^2)+2tan^-1(2x/1-x^-2)=Pi/3???? Plzzzz …

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Solve for x 3sin^-1 (2x/1+x^2)-4cos^-1(1-x^2/1+x^2)+2tan^-1(2x/1-x^-2)=Pi/3???? Plzzzz help me

Posted by Aparna Nair 6 years, 9 months ago

CBSE > Class 12 > Mathematics

10 answers

Rahul Chauhan 6 years, 9 months ago

Yah this type of q asked continuously last 3 years

Rahul Chauhan 6 years, 9 months ago

U r right u will get answer this way easily

Rahul Chauhan 6 years, 9 months ago

Very easy u would put formulae of 2 tan-1x

Aparna Nair 6 years, 9 months ago

Thnks evrybdy.... I got the answer anyway... It was just to substitute sin^-1&cos^-1terms wid 2 tan-1 and value of x is1/root 3... Try it guys... Its an important sample paper qn

Aparna Nair 6 years, 9 months ago

Thnks sidharth.... But if we put sin^-1& cos^-1 terms wid 2tan-1 x... Is that possible to find... Can u do it for me & just tell me that answer

Rahul Chauhan 6 years, 9 months ago

Using formulae of sin 2x,cos2x,and tan 2x and evalute :: formulae in 11 class math book okkkk...

Maths Topper Girl 6 years, 9 months ago

Put x= tanA

Siddharth Jain 6 years, 9 months ago

Put x=tan @

Parru Kaur Brar 6 years, 9 months ago

sry my mathematics is very nil

Aparna Nair 6 years, 9 months ago

Plzzzz tell me......

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