x¹⁵ ÷ (x¹⁷ ÷ x⁶) : If x = (-3), then find the value.
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here is the answer to your question
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Solution :
Given
x = ( -3 ) ----( 1 )
Value of x^15 ÷ ( x^17 ÷ x^6 )
= x^15 ÷ ( x^17-6 )
[ Since , a^m ÷ a^n = a^m-n ]
= x^15 ÷ x^11
= x^15-11
= x⁴
= ( -3 )⁴ [ from ( 1 ) ]
= 3⁴
= 81
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