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Evaluate:(3x27^n+1+9x3^n-1)/8x3^3n-5x27^n |
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Answer» Answer: 3×27 n+1 +9×3 3N−1
= 2 3 ×3 3n −5×3 3n
3×(3 3 ) n+1 +3 2 ×3 3n−1
= 2 3 ×3 3n −5×3 3n
3 1+3n+3 +3 2+3n−1
= 2 3 ×3 3n −5×3 3n
3 3n+4 +3 3n+1
= 3 3n (2 3 −5) 3 3n (3 4 +3 1 )
= 8−5 81+3
= 3 84
=28 |
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