Write the number of poits of intersection of the curves $2 y = 1 a n d y = c o s x, 0 \leq x \leq 2 π .$

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Solution

$We have, 2 y = 1 a n d y = c o s x These curves intersect where c o s x = \frac{1}{2} ∴ These curves intersect at 2 points.$

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