(Download) ICSE Class-12: Sample Question Paper 2018-MATHEMATICS
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MATHEMATICS
SECTION A (80 Marks)
Question 1 [10×2]
(i) A binary operation * defined on Q-{1} is given by a * b = a+b – ab. Find
the identity element.
(ii) Without expanding at any stage, find the value of the determinant:
(iii) Solve: sin-1 cos (sin-1x) = 3
(iv) Find the value of k if ⌊
and .
(v) Evaluate: