If (-5/7)-⁴×(-5/7¹²={(-5/7)³}
×(-5/7)-¹, find the value of
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Answered by
7
Answer:
we have
(-5/7)^-4 × (-5/7)^12={(-5/7)^3}^x ×(-5/7)^-1
we know that when base are equal then power will also equal
therefore -4+12=3x+(-1)
=》8=3x-1
=》8+1=3x
=》9=3x
=》9/3=x
=》3=x
hence the x=3
Answered by
1
Answer:
3 Ans.
Step-by-step explanation:
Given,
(-5/7)^-4 × (-5/7)^12={(-5/7)^3}^x ×(-5/7)^-1
As we know when base are equal then power will also be equal -:
∴ -4+12=3x+(-1)
⇒ 8=3x-1
⇒ 8+1=3x
⇒ 9=3x
⇒ 9/3=x
⇒ 3=x
Therefore, the value of x = 3
Hope it helps!!
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