Math, asked by MeinHubAbhi, 6 hours ago

Verify |a| = a and |-a| = a for
a = -4/7

Answers

Answered by 5ayuvrajharshvardhan

3

Answer:

Step-by-step explanation:

(i) a = 21, b = 18

a – (-b) = 21-(-18)

21-(-18) = 21 + 18

21+18= 39

a + b = 21+18

21+18 = 39

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