Standard result: if ∣A∣=0, the system AX=B has a unique solution. Option 3 claims that ∣A∣=0 with (adjA)B=0 gives no solution, which contradicts uniqueness. So option 3 is the incorrect statement.
Given ∑p0q0=800, ∑p0q1=1500, ∑p1q1=1300 and ∑p1q0=900, where subscripts 0 and 1 are used for base year and current year respectively. The Paasche's index number is:
Held on 23 May 2023 · Verified 13 Jul 2026.
88.9
115.4
144.4
86.7
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If the total cost and total revenue of a company that produces and sells $x$ units of a particular product are $C(x) = 5x + 350$ and $R(x) = 50x - x^2$ respectively, then which of the following is/are the breakeven values: (A) $x = 10$ (B) $x = 25$ (C) $x = 45$ (D) $x = 30$ Choose the correct answer from the options given below:
The supply function of a commodity is P = $x^3+2x+18$. When 4 units of commodity are sold , then producer surplus is:
The demand function P for maximising a profit monopolist is given by P=274-x², while the marginal cost is 4+3x for x units of commodity. The consumer surplus is
If $y = e^{\frac{1}{2}\log(1+ \tan^2 x)}$, then $\frac{d^2y}{dx^2}$ is equal to:
If the random variable X follows the Poisson distribution such that P[X = k] = P[X = k+1], then the mean value of X is:
Work through every CUET UG Applied-Mathematics PYQ, year by year.