If a, b, c, d are any four consecutive coefficients of any expanded binomial, then a+b a , b+c b , c +d c are in:

If a, b, c, d are any four consecutive coefficients of any expand…

$\alpha ,\,\,\beta ,\,\,\gamma $ are real numbers satisfying $\alpha + \beta + \gamma = \pi $. The minimum value of the given expression $\sin \alpha + \sin \beta + \sin \gamma $ is

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Let $f(x)=a x^2+b x+c$, where $a, b, c$ are integers, Suppose $f(1)=0,40 < f(6) < 50,60 < f(7) < 70$ and $1000 t < f(50) < 1000(t+1)$ for some integer $t$. Then, the value of $t$ is

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The value of $\frac{\text{i}^{592}+\text{i}^{590}+\text{i}^{588}+\text{i}^{586}+\text{i}^{584}}{\text{i}^{582}+\text{i}^{580}+\text{i}^{578}+\text{i}^{576}+\text{i}^{574}}-1$ is

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Two persons $A$ and $B$ throw a (fair)die (six-faced cube with faces numbered from $1$ to $6$ ) alternately, starting with $A$. The first person to get an outcome different from the previous one by the opponent wins. The probability that $B$ wins is

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The coefficient of ${x^{39}}$ in the expansion of ${\left( {{x^4} - \frac{1}{{{x^3}}}} \right)^{15}}$ is

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If $|2\text{x} – 3|<|\text{x} + 5|,$ then x belongs to:

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Let $L$ be a common tangent line to the curves $4 x^{2}+9 y^{2}=36$ and $(2 x)^{2}+(2 y)^{2}=31$. Then the square of the slope of the line $L$ is ..... .

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$\frac{{1 + \sin A - \cos A}}{{1 + \sin A + \cos A}} =$

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${{{{[4 + \sqrt {(15)} ]}^{3/2}} + {{[4 - \sqrt {(15)} ]}^{3/2}}} \over {{{[6 + \sqrt {(35)} ]}^{3/2}} - {{[6 - \sqrt {(35)} ]}^{3/2}}}} = $

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Choose the correct answers: Domain of $\sqrt{\text{a}^2-\text{x}^2}(\text{a}>0)$ is.

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SEQUENCES AND SERIES — MATHS STD 11 Science — Question

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