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Class 12th CBSE 2016 Mathematics Paper Set 1

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Class-12th CBSE
Subject-Mathematics Set 1
year-2016       

Here is some questions:-
SECTION-A

1. If A is a square matrix such that A2 = I, then find the simplified value of   (A – I)3 + (A + I)3 – 7A.

SECTION-B
1. The monthly incomes of Aryan and Babban are in the ratio 3 : 4 and their monthly expenditures are in the ratio 5 : 7. If each saves ` 15,000 per month, find their monthly incomes using matrix method. This problem reflects which value ?
SECTION–C
1. An urn contains 3 white and 6 red balls. Four balls are drawn one by one with replacement from the urn. Find the probability distribution of the number of red balls drawn. Also find mean and variance of the distribution.


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