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If zero of the polynimial 3x …

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If zero of the polynimial 3x cube -x square -3x+1 is 1 , then find all the other zeroes .

Posted by Pritam Bhandary 4 years, 5 months ago

CBSE > Class 10 > Mathematics

3 answers

Adithya Dev A 4 years, 5 months ago

sin A = 3/4. Now, sin^2 A + cos^2 A = 1. cos A = √1 - sin^2 A = √1 - 9/16 = √7/16 = √7/4. Therefore, sec A = 4/√7.

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Abhinav Raj 4 years, 5 months ago

Let p(x) =3x^3 -x^2 -3x + 1. One zero of p of x is given 1. Therefore ( x -1) is a factor of p of x. Now. Divide p of x with (x - 1).we get. 3x^2 +2x -1. Now factorise it. We get, Therefore. Other zero of p of x is -1 and 1/3 . ???? ?? ???? ???? ?.

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Nksingh 44 4 years, 5 months ago

if sin A=3/4, calculate sec A

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