Question

9th Grade Maths
solutions please
Both 16 and 17
Thank you in advance ​

Answer 1

Ans:- (625)^0.16 × (625)^0.09

= (625)^0.16+0.09 (since by a^m × a^n = a^m+n)

= (625)^0.25

= 5

2. 3/(5-√3) + 2/(5+√3)

= 3/(5-√3) × (5+√3) / (5+√3) + 2/(5+√3) × (5-√3) / (5-√3)

= (15+ 3√3) / 25 - 3 + (10 - 2√3) / 25 - 3

= (15+3√3)/22 + (10-2√3)/22

= (15+3√3+10-2√3)/22

= (25+√3)/22

here is your answer

hope it will help you