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Algebra

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24 Feb 2007 20:20:30 IST

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410

algebra

None

how many solutions does exist of the following equation:

cos(x-1)=abs(x-1)/10

(a) 1 (b)2 (c)3 (d)none of these

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Rajat Barve

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Joined: 31 Jan 2007

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24 Feb 2007 20:28:56 IST

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is the answer : a

Bipin Dubey

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Joined: 23 Jan 2007

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25 Feb 2007 13:47:14 IST

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If you will draw the graphs of the functions y = cos(x-1) and y=|x-1|/10
then you will find that they intersect at two points,one in the 1st quadrant and the other in the 2nd quadrant.Hence 2 values of x are possible.

Hence answer is (b) 2

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varun bhaskar

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26 Feb 2007 11:44:03 IST

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THE ANSWER IS 2 BECAUSE IT IS A COS FUNCTION ,ON PLOTTING THE GRAPH WE CAN GET TWO SOLUTIONS ONE POSITIVE & OTHER NEGATIVE

Amar Gupta

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26 Feb 2007 12:36:08 IST

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Dear,

I agree with Mr. iitkgp_bipin

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