Vishwanath
Saturday, February 16, 2013
27. If a = 0.1039, then the value of 4a² - 4a + 1 + 3a is:
A. 0.1039
B. 0.2078
C. 1.1039
D. 2.1039
Answer:
Option : C
4a² - 4a + 1 + 3a = (1)² + (2a)² - 2 x 1 x 2a + 3a
= (1 - 2a)² + 3a
= (1 - 2a) + 3a
= (1 + a)
= (1 + 0.1039)
= 1.1039
Title : Square Roots And Cube Roots Q27
Description : 27. If a = 0.1039, then the value of 4a² - 4a + 1 + 3a is: A. 0.1039 B. 0.2078 C. 1.1039 D. 2.1039 Answer: ...
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