Assertion A- The set of all real numbers a such that a2-2a- 2a-3 and a2-3a-8 are the sides of a triangle is 5- -Reason R- Since in a triangle sum of two sides is greater than the other and also sides are always positive-

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Addition and Subtraction of Algebraic Expression

Assertion A: ...

Question

Assertion (A): The set of all real numbers a such that $a^{2} + 2 a, 2 a + 3$ and $a^{2} + 3 a + 8$ are the sides of a triangle is $(5, \infty)$ .

Reason (R): Since in a triangle sum of two sides is greater than the other and also sides are always positive.

both A and R are true and R is the correct explanation of A.

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both A and R are true and R is not the correct explanation of A.

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A is true but R is false.

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A is false but R is true.

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