lx+my+nz=d is the normal form of a plane (II). x/a+y/b+z/c=1 is the intercept form (IV). (r−a)⋅n=0 is a plane through point a with given normal n (I). The combination with λ gives a plane through the intersection of two planes (III). So A-II, B-IV, C-I, D-III.
The total cost of producing x generators is given by TC = x^3 - 60x^2 + 1500x + 2000. The Marginal Cost (MC), when x = 10 units is:
CUET UG 2023 — Mathematics Applied-Mathematics
2023mcqeasy
The total cost of producing x generators is given by
TC = x3−60x2+1500x+2000.
The Marginal Cost (MC), when x=10 units is:
Official previous-year question
Held on 23 May 2023 · Verified 13 Jul 2026.
Options
- A
Rs.2,000
- B
Rs.1,200
- C
Rs.600
- D
Rs.200
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