Verify that |x+y|<=|x|+|y|
if x=-7/8, y=-3/5
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Answered by
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x = -7/8 so | x | = 7 / 8
y = -3/5 so | y | = 3/5
Add |x| + |y| = 7/8 + 3/5 = ( 7 * 5 + 3 * 8 ) / 8 * 5 = 59 / 40
| 7 3 | | - 7*5 - 3 * 8 |
| x + y | = | - --- - ---- | = | -------------- | = | - 59 / 40 |
| 8 5 | | 40 |
= 59 / 40
So both are same. verified.
y = -3/5 so | y | = 3/5
Add |x| + |y| = 7/8 + 3/5 = ( 7 * 5 + 3 * 8 ) / 8 * 5 = 59 / 40
| 7 3 | | - 7*5 - 3 * 8 |
| x + y | = | - --- - ---- | = | -------------- | = | - 59 / 40 |
| 8 5 | | 40 |
= 59 / 40
So both are same. verified.
Answered by
1
(-7/8(-3/5)).......-7/8-3/5......-(35/24)/40.....-11/40....(-7/8)+(-3/5)....-7/8-3/5.....-(35/24)/40.......-11/40...
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