Question

The value
of
9.9 X 9.9 - 62 x 62
16.1×3.7

(a) 1
(b) 3.7
(c) 6.2
(d) 16.1​

Answer 1

Given info--------->

(9.9×9.9 - 62×62) ×16.1×3.7

To find------------>

It's Value

Some Important concepts------------->

We will Separate it by commas and then we will solve it.

Solution------------>

(9.9×9.9 - 62×62)×16.1×3.7

=(98.01-3,844)×16.1×3.7

=(-3,745.99×16.1×3.7)

=-2,28,889.07.

Hence Verified---------->

The Final Value after evaluating is -228889.07

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Answer 2

SOLUTION

TO CHOOSE THE CORRECT OPTION

The value of

$\displaystyle \sf{ \frac{9.9 \times 9.9 - 6.2 \times 6.2}{16.1 \times 3.7} }$

(a) 1

(b) 3.7

(c) 6.2

(d) 16.1

FORMULA TO BE IMPLEMENTED

$\displaystyle \sf{ {a}^{2} - {b}^{2} = (a + b)(a - b )}$

EVALUATION

$\displaystyle \sf{ \frac{9.9 \times 9.9 - 6.2 \times 6.2}{16.1 \times 3.7} }$

$\displaystyle \sf{ = \frac{ {(9.9)}^{2} - {(6.6)}^{2} }{16.1 \times 3.7} }$

$\displaystyle \sf{ = \frac{ (9.9 + 6.2)(9.9 - 6.2) }{16.1 \times 3.7} }$

$\displaystyle \sf{ = \frac{ 16.1 \times 3.7 }{16.1 \times 3.7} }$

$\displaystyle \sf{ = 1}$

FINAL ANSWER

Hence the correct option is (a) 1

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