Polar Area Q & A

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Polar Area Q & A

Q: What is the concept of directed distance in polar area discussion in the topic on, "Area Under the Curves"?

A: Click here to download the video (.wmv file) explaining this.

Sum of the coefficients in the expansion of $(x+y)^n$ ....

If the sum of the coefficients in the expansion of $(x+y)^n$ is 4096, then the greatest coefficient in the expansion is _ _ _ _ . Solution $C_0 + C_1 + C_2 + C_3 + ......................... + C_n =4096 $ $\therefore 2^n = 4096 =2^{12} $ $\Rightarrow n = 12 $ Greatest coefficient = ${}^{12}{C_6} = 924$

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Polar Area Q & A

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Sum of the coefficients in the expansion of $(x+y)^n$ ....