Question

LEVEL-1
Evaluate each of the following (1-19):
1. sin 45° sin 30° + cos 45º cos 30°
2. sin 60 cos 30° + cos 60° sin 30°
3. cos 60° cos 45º – sin 60° sin 45°
A. sin? 30° + sin? 45° + sina 60° + sin 90°
5. cos? 30° + cos² 45° + cos2 60° + cos2 90° 6. tan- 30° + tan-60° + tan- 45°
7. 2 sin? 30° - 3cos? 45° + tan? 60°
S. sin? 30° cos? 45° + 4 tan? 30° +
1
1
sin? 90° - 2 cos90° +
-cos²00
2
24
I sin?
Locoba​

Answer 1

Answer:

sin 45° sin 30° + cos 45° cos 30° … . (i) We know that by trigonometric ratios we have Read more on Sarthaks.com - https://www.sarthaks.com/33982/evaluate-each-of-the-following-sin-45-sin-30-cos-45-cos-30?show=33983#a33983

Answer 2

Answer:

ap mare GF bano gi plz

Explanation:

6. Complete the following table with correct information with regard to Indian Desert :

Covered with

sandy dunes.

Rainfall

?

Name of the river

?