I hope this helps you
Answer:
3 -√5
Step-by-step explanation:
(√5 + 1) / (2 + √5)
Multiply top and bottom of the fraction by the conjugate of 2 + √5 which is 2 - √5.
By doing this we rationalise the denominator:
= (√5 + 1 ) * ( 2 - √5) / (2 + √5)(2 - √5)
= (√5 + 1 ) * ( 2 - √5)/ (4 - 2√5 + 2√5 - 5)
= (2√5 - 5 + 2 - √5) / (4 - 5)
= (√5 - 3) / -1
= 3 -√5
45
9 ÷ 1/5
9 × 5/1
9 × 5
There are 32 outcomes that are possible
Given,
A=90
b=15
A=12bh
Now,
Put the given value in the formula
90=12*15*h
90=180h
90/180=h
Hence, h=0.5
