Question

Answer the attached question....

Answer 1

Answer:

Here,we take sin and cos common in series.

We get two AP's for which we apply the formula of sum of AP.

On solving,we get sin theta=1/2

So,theta is 30°.

Hence,sin30-cos20 is (1-✓3)/2

Answer 2

This five-day festival starts with Dhanteras, which celebrates and welcomes good luck, wealth and prosperity. On Dhanteras people buy jewellery and utensils because any kind of metal is believed to ward off bad luck and usher in wealth and prosperity. Dhanteras is followed by Chhoti Diwali, Diwali, Govardhan Puja and finally, Bhai Dooj marks the end of this festival.