Question
Find $\sum_{r=1}^n\left(5 r^2+4 r-3\right)$
✓
Answer
Get the step-by-step solution for this question inside the Vidyadip app.
Get the answer in the appNeed a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Find the polar co-ordinates of points whose Cartesian co-ordinates are : $(1, \sqrt{3})$
→If $\mathrm{f}(\mathrm{x})=\left\{\begin{array}{ll}x^2+3, & x \leq 2 \\ 5 x+7, & x>2 \end{array}\right.$},then find$\mathrm{f}(\mathrm{C})$
→Write the number of elements in tha power set of null set.
Find out the following sentences are statements and which are not. Justify your answer.
Are all circles round?
Are all circles round?
The value of a house appreciates 5% per year. How much is the house worth after 6 years
→if its current worth is Rs. 15 Lac. [Given: $(1.05)^5=1.28,(1.05)^6=1.34$ ]
Show that $\\4 \sin \theta \cos ^3 \theta-4 \cos \theta \sin ^3 \theta=\sin 4 \theta$
→If $\alpha,\beta$ are roots of the equation $x^2− a (x + 1) − c = 0$, then write the value of $(1+\alpha)(1+\beta)$
→Determine which of the following pairs of angles are co-terminal : 210°, 150°
Write the conjugates of the following complex numbers: -√-5
Check if the following relations are functions :
