Make correct statementby filling the symbol or in the blank space: x : x is an equilateral triangle in a plane x : x is a triangle in the same plane

x : x is an equilateral triangle in a plane x: x is a triangle in the same plane

Make correct statementby filling the symbol or in the blank space…

Find the sum of the following arithmetic progression:
1, 3, 5, 7, ... to 12 terms.

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Describe the following sets in Roster form: $\{\text{x} \in\text{N} :\text{x}=\text{2n, n}\in\text{N}\};$

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If $\sin\text{x}+\cos\text{x}=\text{a},$ find the value of $|\sin\text{x}-\cos\text{x}|.$

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Find out the following sentences are statements and which are not. Justify your answer. Go!

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Show that the following statement is true by the method of contrapositive p: "If x is an integer and $x^2$ is odd, then x is also odd"

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What universal setwould you propose:The set of isosceles triangles.

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Find the limit: $\lim \limits_{x \rightarrow 3}[x(x+1)]$

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If $\frac{3+5+7+\ ...\ +\text{Upto n terms}}{5+8+11+\ ...\ \text{Upto 10 terms}}=7,$ then find the value of n.

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Prove that: $2\sin\frac{5\pi}{12}\sin\frac{\pi}{12}=\frac{1}{2}$

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Find the values of the trigonometric function: sin 765°

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