0Trigonometric ratios for class X:
#Trick to remember values of trigonometric ratios of special Angles:
| 0° | 30° | 45° | 60° | 90° | |
| P | 0 | 1 | 1 | √3 | 1 |
| B | 1 | √3 | 1 | 1 | 0 |
| H | 1 | 2 | √2 | 2 | 1 |
now,
Sin30°=P/H=1/2
Similarly you can find other ratios as well.
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Trigonometric ratios for class X:
#Trick to remember values of trigonometric ratios of special Angles:
| 0° | 30° | 45° | 60° | 90° | |
| P | 0 | 1 | 1 | √3 | 1 |
| B | 1 | √3 | 1 | 1 | 0 |
| H | 1 | 2 | √2 | 2 | 1 |
now,
Sin30°=P/H=1/2
Similarly you can find other ratios as well.
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