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AlgebraQuestion and Answers: Page 29

Question Number 207330 Answers: 1 Comments: 0

Find: 4 cos 50° + (1/(sin 20°)) = ?

$Find : 4 \cos 50 ° + \frac{1}{\sin 20 °} = ?$

Question Number 207328 Answers: 1 Comments: 0

Find: 4 sin 50° − (1/(cos 20°)) = ?

$Find : 4 \sin 50 ° - \frac{1}{\cos 20 °} = ?$

Question Number 207327 Answers: 1 Comments: 1

(x−3) (√(x^2 −x−2)) = 0 Find: x = ?

$(x - 3) \sqrt{x^{2} - x - 2} = 0$ $Find : x = ?$

Question Number 207408 Answers: 2 Comments: 0

z = ((√3)/2) − (1/2) i find: z^(11) = ?

$z = \frac{\sqrt{3}}{2} - \frac{1}{2} i find : z^{11} = ?$

Question Number 207407 Answers: 0 Comments: 2

Question Number 207320 Answers: 1 Comments: 1

Question Number 207315 Answers: 1 Comments: 0

if ab+ac+bc=2 calculate minimum of 10a^2 +10b^2 +c^2

$i f a b + a c + b c = 2$ $c a l c u l a t e m i n i m u m o f 10 a^{2} + 10 b^{2} + c^{2}$

Question Number 207279 Answers: 0 Comments: 1

If z = i − 1 Find z^(−100) = ?

$If z = i - 1$ $Find z^{- 100} = ?$

Question Number 207274 Answers: 1 Comments: 0

log_(abc) a = 2 and log_(abc) b = 3 find: log_(abc) c = ?

$\log_{abc} a = 2 and \log_{abc} b = 3$ $find : \log_{abc} c = ?$

Question Number 207272 Answers: 0 Comments: 2

arcsin (x^2 − 3) = arcsin (x^2 + 3x + 4) x = ?

$\arcsin (x^{2} - 3) = \arcsin (x^{2} + 3 x + 4)$ $x = ?$

Question Number 207271 Answers: 1 Comments: 0

arg ( ((2 − i)/i) ) = 2 Find: Imz + Rez = ?

$\arg (\frac{2 - i}{i}) = 2$ $Find : Imz + Rez = ?$

Question Number 207270 Answers: 1 Comments: 0

{ ((∣x∣ + y − 1 = 0)),((x − y − 1 = 0)) :} find: 2x−3y = ?

${\begin{cases} ∣ x ∣ + y - 1 = 0 \\ x - y - 1 = 0 \end{cases} find : 2 x - 3 y = ?$

Question Number 207269 Answers: 0 Comments: 0

Find: 4 cos^2 40 − (1/(cos 20)) = ?

$Find : 4 \cos^{2} 40 - \frac{1}{\cos 20} = ?$

Question Number 207250 Answers: 2 Comments: 0

If 2^a = 5 , 3^b = 9 and 25^c = 8 Find: a∙b∙c = ?

$If 2^{a} = 5, 3^{b} = 9 and 25^{c} = 8$ $Find : a \cdot b \cdot c = ?$

Question Number 207249 Answers: 1 Comments: 0

{ ((x^2 + 2y^2 + xy = 37)),((y^2 + 2x^2 + 2xy = 26)) :} find: x^2 + y^2 = ?

${\begin{cases} x^{2} + {2 y}^{2} + xy = 37 \\ y^{2} + {2 x}^{2} + 2 xy = 26 \end{cases} find : x^{2} + y^{2} = ?$

Question Number 207248 Answers: 1 Comments: 0

If f(x) = 3^(x+1) Find ((f(2x + 1))/(f(x + 2))) = ?

$If f (x) = 3^{x + 1}$ $Find \frac{f (2 x + 1)}{f (x + 2)} = ?$

Question Number 207247 Answers: 1 Comments: 1

8 + ((18)/(2 + (7/(5 + (2/x))))) = 14 find: x = ?

$8 + \frac{18}{2 + \frac{7}{5 + \frac{2}{x}}} = 14 find : x = ?$

Question Number 207233 Answers: 1 Comments: 1

1. lim_(n→∞) ( ((n − 1)/(n + 2)) )^(n + 3) = ? 2. lim_(x→∞) ( ((5x + 6)/(2x − 9)) )^x^2 = ? 3. lim_(n→∞) ( ((n + 3)/(n + 1)) )^n = ?

$1 . \lim_{n \to \infty} {(\frac{n - 1}{n + 2})}^{n + 3} = ?$ $2 . \lim_{x \to \infty} {(\frac{5 x + 6}{2 x - 9})}^{x^{2}} = ?$ $3 . \lim_{n \to \infty} {(\frac{n + 3}{n + 1})}^{n} = ?$

Question Number 207262 Answers: 1 Comments: 0

a_n - number series a_1 = 5 d = 3 a_2 ^2 −a_1 ^2 + a_4 ^2 −a_3 ^2 + a_6 ^2 −a_5 ^2 + ... + a_(10) ^2 −a_9 ^2 = ?

$a_{n} - number series$ $a_{1} = 5$ $d = 3$ $a_{2}^{2} - a_{1}^{2} + a_{4}^{2} - a_{3}^{2} + a_{6}^{2} - a_{5}^{2} + . . . + a_{10}^{2} - a_{9}^{2} = ?$

Question Number 207226 Answers: 2 Comments: 0

Find: (((2 − (√2))^8 ∙ (6 + 4 (√2))^8 )/((2 + (√2))^8 )) = ?

$Find : \frac{{(2 - \sqrt{2})}^{8} \cdot {(6 + 4 \sqrt{2})}^{8}}{{(2 + \sqrt{2})}^{8}} = ?$

Question Number 207225 Answers: 0 Comments: 1

6×5=30

$6 \times 5 = 30$

Question Number 207220 Answers: 2 Comments: 0

Find: (i − 1)^(−100) = ?

$Find : {(i - 1)}^{- 100} = ?$

Question Number 207219 Answers: 1 Comments: 0

Find: ((tg 20)/(1 + tg^2 20)) + ((tg 21)/(1 + tg^2 21)) +...+ ((tg 70)/(1 + tg^2 70))

$Find :$ $\frac{tg 20}{1 + {tg}^{2} 20} + \frac{tg 21}{1 + {tg}^{2} 21} + . . . + \frac{tg 70}{1 + {tg}^{2} 70}$

Question Number 207218 Answers: 1 Comments: 0

2^x + ((6 ∙ 2^x − 10)/(2^x − 2)) = 4 ∙ 2^x + (1/(2^x − 2)) Find: x = ?

$2^{x} + \frac{6 \cdot 2^{x} - 10}{2^{x} - 2} = 4 \cdot 2^{x} + \frac{1}{2^{x} - 2}$ $Find : x = ?$

Question Number 207212 Answers: 1 Comments: 1

arcsin (sin 6) = ?

$\arcsin (\sin 6) = ?$

Question Number 207207 Answers: 1 Comments: 0

100 x^(lg x) = x^3 Find: x = ?

$100 x^{\lg x} = x^{3}$ $Find : x = ?$

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