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1. For which value of P will the square root of 4 x 2 − p x + 9 b e a n i n t e g e r
- A. 20
- B. 20
- C. 20
- D. 20
Answer: Option C
Explanation:
4x^2 - px + 9
= (2x)^2 + (3)2 - 2.2x.3 - px + 2.2x.3
= ( 2x - 3)^2 + 12x - px
রাশিটিপূর্ন বর্গ হবে যদি , 12x - px = 0
p = 12
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