if 17/19 raised to the power 7 X 19/17 raised to the power -8 = 17/19 raised to the power 3x find the value of x
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ANSWER IS 5
Explanation:
[Any number (say x) raised to the power some number (say n) can also be written as x^n]
(17/19)^7 * (19/17)^-8 = (17/19)^3x
=⟩ (17/19)^7 * (17/19)^8 = (17/19)^3x
[Sign of the power is reversed when reciprocal is
done]
=⟩ 7+8=3x
[Since all the abses are same, hence the powers are
also same]
=⟩ 15=3x
=⟩ x=15/3
= 5
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