what is the cos of infinity cos (infinity)=?????
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answer is between -1 and 1
since sin waves (sin comes after taking derivative of cosine) oscillate between 1 and -1
and the denominator becomes 1 after taking derivative
Step-by-step explanation:
apply L' Hospital's rule
that is find the derivative of both numerator and denominator and rewrite it
i am in 8th standard
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