Question

Find the sum of the first 33 terms of the following series, to the nearest integer
3, 9,15,..

Answer 1

Step-by-step explanation:

what is (a+b)² and (a-b)² and a²-b²=?ᴀʀᴇᴀ ᴏғ ᴛʜᴇ sᴇɢᴍᴇɴᴛ

= \pi \: r^{2} \times \frac {\theta}{360°}πr2×360°θ

= \frac {22}{7} × 7 × 7 × \frac {30°}{360°}722×7×7×360°30°

= 22 × 7 × \frac {1}{12}22×7×121

= 12.83 \: approx.12.83approx.

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