find find the value of cos 20 degree minus Cos 70 degree upon cos 20 degree + cos 70 degree
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The value is -0.124485
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the answer would be not defined as
=cos 20-cos 70 /cos 20+cos70
= -cos50/cos90
= - cos 50/0 as the value of cos 90 is 0 so any no. divided by zero is equals to 0
hence the answer would be not defined
=cos 20-cos 70 /cos 20+cos70
= -cos50/cos90
= - cos 50/0 as the value of cos 90 is 0 so any no. divided by zero is equals to 0
hence the answer would be not defined
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