Identify the first and last term of the binomial expansion for the problem below. (3 + 2a)5 = + … + to enter exponents, use the ^ symbol. for example, to enter 45, enter it like this: 4^5 enter your answers as the expressions and/or numbers that correctly fill in the blanks, separated by a comma, like this: 4a^2, 5a^3

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b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.