CBSE 11th Standard Maths Subject HOT Questions 6 Mark Questions 2021 Part - I
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CBSE 11th Standard Maths Subject HOT Questions 6 Mark Questions 2021 Part - I
11th Standard CBSE
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Reg.No. :
Mathematics
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Let A = {8, 11, 12, 15, 18, 23} and f is a function from \(A\rightarrow N\) such that f(x) = highest prime factor of x, find f and its range.
(a) -
Find the real numbers x and y, if (x-iy) (3+5i) is the conjugate of -6 -24i.
(a) -
If nCr-1 = 36. nCr = 84 and nCr+1 = 126 then find rC2
(a) -
If lines whose equation are y = m1x + c1 , y =m2x + c2 and y = m3x + c3 at a point then prove that m1(c2-c3)+m2(c3-c1)+m3(c1-c2)=0
(a) -
If 4-digit numbers greater than 5,000 are randomly formed from the digits 0, 1, 3, 5, and 7, what is the probability of forming a number divisible by 5 when, (i) the digits are repeated? (ii) the repetition of digits is not allowed?
(a)