Question

find the square root of 7 correct to three significant figures.hence , find the value of ✓(3+√7)/(3-√7) correct to 2 decimal places.​

Answer 1

Answer:

Your answer is 1.414

Step-by-step explanation:

√7 = 2.64

we have,

√ [ (3 + √7) (3-√7)

Formula: (a+b) (a-b) = a^2 - b^2

Hence,

√[ (3)^2 - (√7)^2]

√ [ 9 - 7]

√2

= 1.414...