1. To at Rot Rat - 1 sin 60° cos 30° + sin 30° cos 60° (1) 2 tan 450+ cos² 30° - sin 60° cas 450 un soc 30 + cosec 30° (v) sin 30° + tan 45° - cosec 60° soo 30° + cos 60° + cot 45° scor 60° + 4 sec 30° - tan* 45° sin 30° + cos² 30°
| Angle in degrees | 0 | 30 | 45 | 60 | 90 |
| sin | 0 | 1 | |||
| cos | 1 | 0 | |||
| tan | 0 | 1 | not defined |
Using the above table and relations the given question can be easily solved.
3
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