Question 2 all my circled ones

# Doubt from differential equation

I didnt need solution of this question i needed circles question and parabola question

What about parabola question

But order is 2 in answer key given in parabola question

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Question 7 and 9

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Question no 4 a part i did by taking h,k method but got wrong answer and question 5 second part i did by bernoullis method but got wrong answer

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Bro 4(a) is H.D.E already and 5th is linear Diffrential eq.

Question 2

Question 4 b part also

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Thanks

Pls check..