८३) A+ B = 10, A - B = 5, A2 - B2 = ?
अ) 30
ब) 40
क) 50
Answers
Answered by
46
formula :
A^2 -B^2 = (A+B)(A-B)
given:
A+B=10
A-B=5
A^2 -B^2
=(10)(5)
=50
क) 50
Answered by
0
Step-by-step explanation:
BY USING A²-B²=(A+B)(A-B)
A+ B = 10, A - B = 5,
=10 x 5=50
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