Please enter the following details
Free Daily Targets & Mocks
Study Material & Formulas PDFs
1 on 1 Mentorship
Question 59
If $$\left(2a+\frac{3}{a}-1\right)=11$$, what is the value of $$\left(4a^2 + \frac{9}{a^2}\right)?$$
Solution
$$\left(2a+\frac{3}{a}-1\right)=11$$
$$2a+\frac{3}{a}=12$$
$$4a^2+\frac{9}{a^2}+2.2a.\frac{3}{a}=144$$
$$4a^2+\frac{9}{a^2}+12=144$$
$$4a^2+\frac{9}{a^2}=132$$
Hence, the correct answer is Option C
Create a FREE account and get:
- Free SSC Study Material - 18000 Questions
- 230+ SSC previous papers with solutions PDF
- 100+ SSC Online Tests for Free
