Vishwanath
Monday, February 18, 2013
7. | (243)n/5 x 32n + 1 | = ? | 9n x 3n - 1 |
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Answer:
Option : C
Given Expression | = |
| (243)n/5 x 32n + 1 |
|
9n x 3n - 1 |
= |
| (35)(n/5) x 32n + 1 |
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(32)n x 3n - 1 |
= |
| 35 x (n/5)) x 32n + 1 |
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32n x 3n - 1 |
= |
| 3n x 32n + 1 |
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32n x 3n - 1 |
= |
| 3(n + 2n + 1) |
|
3(2n + n - 1) |
Title : Surds And Indices Q7
Description : 7. (243) n/5 x 3 2n + 1 = ? 9 n x 3 n - 1 A. 1 B. 2 C. 9 D. 3 n Answer: Option : C Given Expression = (243) n/5 ...
Rating : 5
