Math, asked by Pranathi1234, 1 month ago

Find the value of cos45+cos135+cos225+cos315

Answers

Answered by Nsriraam

1

Answer:

0

Step-by-step explanation:

♧ cos45 = 1/ root2

♧ cos135 = cos(90+45)

= -sin45

= - 1/ root2

♧ Cos225 = cos(180+45)

= -cos45

= -1/root2

♧ cos315 = cos(360-45)

= cos45

= 1/root2

= 1/root2 -1/root2 -1/root2 + 1/root2

so cancelling of all it becomes zero

=0

Previous Question

Next Question

Similar questions

Math, 18 days ago

The price of a book and a pen together is 63 rupees. The price of a book and 5 pens book and 5 pens is 75 rupees .What is the price each ? The price of a book and a pen together is 63 srupees. The price of a book and 5 pen is 75 rupees .What is the price of each?

English, 18 days ago

Why is water shortage now a day?

English, 18 days ago

he said to me," Have you revised the course? change introgative ...

Physics, 1 month ago

Draw the distance time graph for a body which moves at a speed of2 m/s for first five seconds than stays at th rest for next 2 seconds and again move at a speed of 2 m/s for next 3 seconds...

Biology, 1 month ago

Epchand RER, DNA, SER, ATP and ER? قی...

English, 9 months ago

I can depend_____ friends i have Change determiner...

English, 9 months ago

People did not weep any more turn into affirmative...

Environmental Sciences, 9 months ago

She has four arms represnting four spitriual Virtus...