Question

using identities evaluate
1.05 × 9.5


it's of class 7th ncert book
plz solve and write full solution please

exercise. 9.5 question 6th (ix) one ....


plz answer​

Answer 1

Answer:

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

so 1.05 = 1 + 0.5 and 9.5 = 1 - 0.5

1.05 * 9.5 = (1 + 0.5) (1 - 0.5) = (1)^2 - (0.5)^2 = 1-(0.25) = 0.75

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Answer 2

Answer:

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