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could someone help me out with 14? i tried it and I get that it uses chain rule and second derivative but I’m so lost please help

could someone help me out with 14 i tried it and I get that it uses chain rule and second derivative but Im so lost please help class=

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Answer:

None of these (see below).

Step-by-step explanation:

y = m cos pt - n sin pt

Using the chain rule:

dy/dt =  m * -sin pt * p - ( n * cos pt * p)

= -mp sin pt  -  np cos pt.

dy/dt^2 = -mp * -cos pt * p - (np * - sin pt * p)

= mp^2 cos pt + np^2 in pt.

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