Answers

2015-11-11T13:45:52+05:30
12^8 ×16^a = 48^8
⇒16^a = 48^8 ÷ 12^8
⇒(4²)^a = (48÷12)^8
⇒4^2a = 4^8
⇒2a = 8    [∵ bases are same , powers are equal ]
⇒a = 8 ÷2
∴a = 4
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2015-11-11T13:46:07+05:30
48^8=12^8 x 16^a Transposing12^8 on left hand side 4^8=16^a 4^8=4^2a On comparison, 2a=8 a=4
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