Question

(81)^x=125^-y find 12xy​

Answer 1

$(3) {}^{4x} = 1 \div (5) {}^{3y} \\ \\ (3) {}^{4x} \times (5) {}^{3y} = 1 \\ this \: equation \: hold \: iff \: \: x = y = 0 \\ \\ so \: \: x = 0 \: \: and \: \: \: y = 0 \\ \\ \\ 12xy = 12(0) \times (0) = 0$

Answer 2

combination has a resistance of (i) 9 11. (ii) 4 0.

combination has a resistance of (i) 9 11. (ii) 4 0.Several electric bulbs designed to be used on a 220 V electric supply line, are

combination has a resistance of (i) 9 11. (ii) 4 0.Several electric bulbs designed to be used on a 220 V electric supply line, arerated 10 W. How many lamps can be connected in parallel with each other across

combination has a resistance of (i) 9 11. (ii) 4 0.Several electric bulbs designed to be used on a 220 V electric supply line, arerated 10 W. How many lamps can be connected in parallel with each other acrossthe two wires of 220 V line if the maximum allowable current is 5 A?

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