Question

The solution of
${ 2}^{x} + {2}^{ |x| } \geqslant 2 \sqrt{2}$
is?
​

Answer 1

Answer:

Solution:

Base of isosceles triangle = 4/3 cm

Perimeter of triangle =

NCERT Solution For Class 8 Maths Chapter 2 Image 2image cm = 62/15

Let the length of equal sides of triangle be x.

According to the question,

4/3 + x + x = 62/15 cm

⇒ 2x = (62/15 – 4/3) cm

⇒ 2x = (62 – 20)/15 cm

⇒ 2x = 42/15 cm

⇒ x = (42/30) × (½)

⇒ x = 42/30 cm

⇒ x = 7/5 cm

The length of either of the remaining equal sides are 7/5 cm.