rationalise the denominator and simplify : 13+3√5/13-3√5
Answers
Answered by
1
Answer:
13+3√5/13-3√5
16√5/10√5
√5 are cancel out
16/10
divide by 2
8/5
8/5 is the answer
Step-by-step explanation:
hope it will help you! mark me as a brainlist and follow me and pls like it
Answered by
4
Answer:
13+3√5/13-3√5
= (13+3√5)(13+3√5)/(13-3√5)(13+3√5)
= (13+3√5)^2/ 13^2-3√5^2
= 13^2+2*13*3√5+3√5^2/169-9*5
= 169+78√5+9*5/169-45
= 169+45+78√5/124
= 214+78√5/124
= 2(102+39√5)/124
= 102+39√5/62
Similar questions