Question

if the n term of an AP is 2n-1; find the 7th term​

Answer 1

Answer:

7th term of this AP is. 2×7 - 1=13. because nth term of AP is 2n - 1

Answer 2

\red{\boxed{ \bf{ \frac{dy}{dx} = x \big(x \: cos \: x \: + 2 \: sin \: x)}} \: }

dx

dy

=x(xcosx+2sinx)