Question

plz can you help plz solve all three,std 9th ​

Answer 1

(ii). (√5×√3)/(2×√3×√3)=√15/6

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Answer 2

Answer:

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Step-by-step explanation:

Hey I am also at 9std

I) Formula :

n(AUB) = n(A) + n(B) - n(AnB)

75 = 55 + 40 - n(AnB)

= 95 - n(AnB)

n(AnB) = 95 - 75 n(AnB) = 25

ii) 5/2√3 × 2√3/2√3

10√3 / 4×3

10√3 / 12

5√3 / 4

iii) Sorry but there is no polynomial given here :(