Math, asked by sahasayan501, 4 months ago

cos a + cos (120° + a) + cos (120° - a
) = 0.

Answers

Answered by hs715811

1

Step-by-step explanation:

cos(120-a)= cos(180-60-a)= cos(180-(60+a))=-cos (60+a)

Previous Question

Next Question

Similar questions

English, 2 months ago

Answer is brief 1) But You are not going to take him away with you ?" Madge asked tremulosly a)To whom did Madge ask this question b)who is 'him' referred to? c)what does the term -asked tremulosly mean? Good Morning ...

Computer Science, 2 months ago

What is a Query_______...

Math, 2 months ago

Simplify: 2 (x2)3 - 6 (x3)2 + 5 x8 by x3 ...

Math, 4 months ago

64) A garden is 25 m long and 15m wide. Srushti takes 3 rounds of the garden alongside its boundry. How much distance did she travel ? A) 375 Sq.m B) 180 m C) 240 m D) 60 m ...

Computer Science, 4 months ago

Refer to the given diagram and answer the question that follows. Write the parts of E-Mail Address against the labels- “A” and “B”...

Math, 11 months ago

please help me. answer all these questions with full process. i know it is too much but I will make u the brainliest. please please put complete answer.

English, 11 months ago

Is A bigger or Z bigger?

Science, 11 months ago

write perminary test for naphthalene benzoic acid. answer this question fast.