Math, asked by owaisshezadah, 1 year ago

cos (45+a) = 1/root 2 (cos a-sin a)

Answers

Answered by anand782000

use formula of cos(a-b) which is
cosacosb-sinasinb,
so,

cos45cosa -sin45sina=1/root2cosa-1/root2sina

taking 1/root2 common,
answer is 1/root2(cosa-sina)

mark as brainliest

anand782000: that will help me if u do so

anand782000: hhh

anand782000: make it cos(a+b) dear, its not being edited there

anand782000: and everything is right there, in place of cos(a-b) , write cos(a+b) , and everything is right there

anand782000: hey owais

anand782000: hello

anand782000: mr , u asked question where r u

anand782000: hello

owaisshezadah: thanx alot 4 ur answer...can u just show how to write it in mathematical way..??

owaisshezadah: and sorry 4 late reply..

Previous Question

Next Question

Similar questions

Hindi, 7 months ago

kya hota agar hamare pass bhasha na hote...

Physics, 7 months ago

2. What happens to the gravitational force between two objects when the distance between them is: (1) a) halved? b) doubled? [1 mark question] ...

Computer Science, 7 months ago

you can draw a line within document at any angle . it is true or false ...

Computer Science, 1 year ago

plz help me get the right answer ASAP!!!!!!! Ethan is a systems developer. He is working on a system where he will implement independent solutions for different processes. What is the possible drawback of using such a system? A. process dependence B. data duplication C. huge initial investment D. increased inventory cost...

Environmental Sciences, 1 year ago

Unlike metals, nonmetals are not good conductors of heat and electricity. How might these properties influence the use of nonmetals in industry? Write a paragraph to explain your answer.

Hindi, 1 year ago

Apna sa muh lekar rah jana muhavra...

Physics, 1 year ago

A uniform wire of resistance 100ohms is cut into 10 equal parts and are connected in parallel to each other. The equivalent resistance of the combination is...

Science, 1 year ago

a person weighing 60 kg on earth weighs only 10 kg on moon why...