Question

cos? 20° + cos? 70°
sin 20° +sin 70"
+ sin 649 + cos 64°sin 26°​

Answer 1

Step-by-step explanation:

Dear Students

Good morning !

Welcome to the new academic session 2021-22

So when you come to school bring your notebooks of different subjects as guided by all the teachers.

In SCIENCE you have to make three notebooks ie for physics , chemistry and biology.

For physics-

1.Make one medium size copy covered with brown cover.

2. After the index page make your information page.

3. And to show your scientific approach start by answering the following questions

1 .What is Science ? and why should we learn Science?

2. Role of physics in your day to day life.

You are supposed to bring this work on the first working day according to your batch .

For Chemistry-

Write five five examples each of three states of matter ie solid ,liquid and gases in tabular form in medium sized note book with brown cover.

For Biology-

1.Make one medium size copy covered with Yellow cover and name slip.

2. On first page write your name and one motivational thought. On next page make index .

3. Now to show your scientific approach write answer of the following question

Q) Who discovered cells and how?

You are supposed to bring this work on the first working day according to your batch .

Regards