value of Cos(180-45)
Answers
Answered by
4
Cos 180minus 45 is cos 135
so
cos 135 is -1/root2
or use formula
cos(a+b)=cosacosb-sinasinb
so
cos 135 is -1/root2
or use formula
cos(a+b)=cosacosb-sinasinb
aayushsh:
thanks
Its -1/√2
whats a joke
Cheak snehitha2 answer
Check
i know
Then what's the joke
firstly
first
What
Answered by
11
Cos (180-θ) = - cos θ
» cos (180-45°) = - cos 45°
» = - (1/√2)
» = -1/√2
» cos (180-45°) = - cos 45°
» = - (1/√2)
» = -1/√2
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