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AlgebraQuestion and Answers: Page 26

Question Number 208282 Answers: 1 Comments: 2

If cosα−cosβ = (1/5) sinα + sinβ = (1/2) Find cos(α + β) = ?

$If \cos α - \cos β = \frac{1}{5} \sin α + \sin β = \frac{1}{2}$ $Find \cos (α + β) = ?$

Question Number 208259 Answers: 2 Comments: 0

Question Number 208241 Answers: 1 Comments: 0

Solve for p, q, r p+q+r=α p^2 +q^2 +r^2 =β pq=r

$Solve for p, q, r$ $p + q + r = α$ $p^{2} + q^{2} + r^{2} = β$ $p q = r$

Question Number 208218 Answers: 1 Comments: 4

a_n numbers series If S_(16) − S_(13) = S_(106) − S_(103) Find: ((3a_3 + 4a_4 + 5a_5 )/(2a_(12) )) = ?

$a_{n} numbers series$ $If S_{16} - S_{13} = S_{106} - S_{103}$ $Find : \frac{{3 a}_{3} + {4 a}_{4} + {5 a}_{5}}{{2 a}_{12}} = ?$

Question Number 208199 Answers: 2 Comments: 0

Question Number 208187 Answers: 1 Comments: 0

Find: 1,03^(200) = ?

$Find : 1, 03^{200} = ?$

Question Number 208167 Answers: 2 Comments: 0

y = 3 cos^2 α + 2 cos α find: max(y) = ?

$y = 3 \cos^{2} α + 2 \cos α$ $find : \max (y) = ?$

Question Number 208164 Answers: 2 Comments: 0

Solve for x: x^2 +x^2 (1−x^2 )+x^2 (1−x^2 )^2 +x^2 (1−x^2 )^3 +...+x^2 (1−x^2 )^(100) =1

$S o l v e f o r x :$ $x^{2} + x^{2} (1 - x^{2}) + x^{2} {(1 - x^{2})}^{2} + x^{2} {(1 - x^{2})}^{3} + . . . + x^{2} {(1 - x^{2})}^{100} = 1$

Question Number 208149 Answers: 3 Comments: 0

Question Number 208135 Answers: 1 Comments: 0

⇃

$⇃ \underset{―}{}$

Question Number 208105 Answers: 0 Comments: 2

Find: (1/4) + (1/8) + (3/(64)) + (4/(256)) + ... + = ?

$Find :$ $\frac{1}{4} + \frac{1}{8} + \frac{3}{64} + \frac{4}{256} + . . . + = ?$

Question Number 208097 Answers: 1 Comments: 0

⇃

$⇃ \underset{―}{}$

Question Number 208090 Answers: 0 Comments: 0

$\underset{―}{}$

Question Number 208076 Answers: 2 Comments: 0

(5 − ∣x∣)^(− (1/3)) (x^2 − 4) < 0

${(5 - ∣ x ∣)}^{- \frac{1}{3}} (x^{2} - 4) < 0$

Question Number 208075 Answers: 1 Comments: 0

Find: ∫ sin (2x − (π/4)) = ?

$Find : \int \sin (2 x - \frac{π}{4}) = ?$

Question Number 208071 Answers: 0 Comments: 6

((4 ∙ 10^n − 52)/3) The numbers are 38 in total Find: n = ?

$\frac{4 \cdot 10^{n} - 52}{3}$ $The numbers are 38 in total$ $Find : n = ?$

Question Number 208063 Answers: 1 Comments: 0

{ ((x + (3/5) y = 5)),(((3/5) x + y = 11)) :} ⇒ x + y = ?

${\begin{cases} x + \frac{3}{5} y = 5 \\ \frac{3}{5} x + y = 11 \end{cases} \Rightarrow x + y = ?$

Question Number 208037 Answers: 1 Comments: 0

Find: 2 log_(√5) sin (π/7) ∙ log_(√(sin (𝛑/7))) 5 = ?

$Find : 2 \log_{\sqrt{5}} \sin \frac{π}{7} \cdot \log_{\sqrt{\sin \frac{π}{7}}} 5 = ?$

Question Number 208020 Answers: 1 Comments: 0

{ (((1/x)+(1/y)=((14)/(625)))),(((√x)+(√y)=8)) :} Find all solutions.

${\begin{cases} \frac{1}{x} + \frac{1}{y} = \frac{14}{625} \\ \sqrt{x} + \sqrt{y} = 8 \end{cases}$ $Find all solutions .$

Question Number 207986 Answers: 1 Comments: 0

(x−3)^(√(x−3 )) = 3

${(x - 3)}^{\sqrt{x - 3}} = 3$

Question Number 207984 Answers: 1 Comments: 0

Question Number 207963 Answers: 0 Comments: 1

⋖

$\underset{―}{\underset{⏟}{⋖}}$

Question Number 207943 Answers: 0 Comments: 11

Find: lim_(x→2^− ) (((x + 2)∙(x + 1))/(∣x + 2∣)) = ?

$Find :$ $\lim_{x \to 2^{-}} \frac{(x + 2) \cdot (x + 1)}{∣ x + 2 ∣} = ?$

Question Number 207930 Answers: 0 Comments: 1

a_n number series a_(k+3) ^2 + a_k = a_(k+2) + a_(k+7) find: k = ?

$a_{n} number series$ $a_{k + 3}^{2} + a_{k} = a_{k + 2} + a_{k + 7}$ $find : k = ?$

Question Number 207919 Answers: 1 Comments: 1

⇃

$⇃ \underset{―}{}$

Question Number 207897 Answers: 3 Comments: 0

Find: (√(12 ∙ 13 ∙ 14 ∙ 15 + 1)) = ?

$Find :$ $\sqrt{12 \cdot 13 \cdot 14 \cdot 15 + 1} = ?$

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