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AlgebraQuestion and Answers: Page 70

Question Number 189212 Answers: 0 Comments: 0

Question Number 189208 Answers: 2 Comments: 0

Question Number 189201 Answers: 1 Comments: 0

In △ABC holds: (√2) a cos (B/2) cos (C/2) = s ⇒ sec (2B) + tan (2B) = ((c + b)/(c − b))

$In △ ABC holds :$ $\sqrt{2} a \cos \frac{B}{2} \cos \frac{C}{2} = s$ $\Rightarrow \sec (2 B) + \tan (2 B) = \frac{c + b}{c - b}$

Question Number 189135 Answers: 2 Comments: 0

Question Number 189137 Answers: 0 Comments: 2

It is known that x is rational x (√(28 + 3(√(28 + 3(√(28 + 3(√?))))))) Find the dufference of possible vaules of x

$It is known that x is rational$ $x \sqrt{28 + 3 \sqrt{28 + 3 \sqrt{28 + 3 \sqrt{?}}}}$ $Find the dufference of possible vaules$ $of x$

Question Number 189133 Answers: 1 Comments: 0

Convert hexadecimal number 4 A F_(16) to decimal

$Convert hexadecimal number$ $4 A F_{16} to decimal$

Question Number 189131 Answers: 2 Comments: 0

Question Number 189124 Answers: 1 Comments: 0

Question Number 189132 Answers: 1 Comments: 0

Find the value of a+b+c+d+e in the system of equations: { ((13a+2b+c+6d+2e=96)),((5a+9b+2c+7d+3e=75)),((7a+8b+17c+11d+7e=99)),((3a+3b+3c+d+8e=55)),((a+7b+6c+4d+9e=79)) :}

$Find the value of a + b + c + d + e$ $in the system of equations :$ ${\begin{cases} 13 a + 2 b + c + 6 d + 2 e = 96 \\ 5 a + 9 b + 2 c + 7 d + 3 e = 75 \\ 7 a + 8 b + 17 c + 11 d + 7 e = 99 \\ 3 a + 3 b + 3 c + d + 8 e = 55 \\ a + 7 b + 6 c + 4 d + 9 e = 79 \end{cases}$

Question Number 189077 Answers: 0 Comments: 0

Question Number 189070 Answers: 1 Comments: 0

Question Number 189025 Answers: 0 Comments: 0

Question Number 189024 Answers: 0 Comments: 0

Question Number 189022 Answers: 3 Comments: 0

if ((√(1+x^2 ))+x)((√(1+y^2 ))+y)=1 with x,y ∈R, find (x+y)^2 =?

$i f (\sqrt{1 + x^{2}} + x) (\sqrt{1 + y^{2}} + y) = 1$ $w i t h x, y \in R, f i n d {(x + y)}^{2} = ?$

Question Number 189013 Answers: 2 Comments: 0

Suppose (G, ∙ ) and (H, ∗ ) are groups. Take homomorphism φ : G → H. Suppose ∃g∈G : ∣g∣ = n, then ∣φ(g)∣ ≤ n. Does ∀g∈G, ∣g∣ = ∣φ(g)∣ ⇒ G ≅ H ?

$Suppose (G, \cdot) and (H, *) are groups .$ $Take homomorphism ϕ : G \to H .$ $Suppose \exists g \in G : ∣ g ∣ = n, then ∣ ϕ (g) ∣ ⩽ n .$ $Does \forall g \in G, ∣ g ∣ = ∣ ϕ (g) ∣ \Rightarrow G ≅ H ?$

Question Number 188928 Answers: 0 Comments: 0

Question Number 188908 Answers: 1 Comments: 0

the radius of a circle is 12cmunits find the perimeter of a regular inscribed a. triangle b.heptagon c. decagon

$t h e r a d i u s o f a c i r c l e i s 12 c m u n i t s$ $f i n d t h e p e r i m e t e r o f a r e g u l a r$ $i n s c r i b e d$ $a . t r i a n g l e$ $b . h e p t a g o n$ $c . d e c a g o n$

Question Number 188898 Answers: 0 Comments: 0

In △ABC holds: Σ ((2 + (√3) tan (B/2))/(1 + 3 tan^2 (A/2))) ≥ (9/2)

$In △ ABC holds : Σ \frac{2 + \sqrt{3} \tan \frac{B}{2}}{1 + 3 \tan^{2} \frac{A}{2}} ⩾ \frac{9}{2}$

Question Number 188879 Answers: 2 Comments: 3

Find the sum of all three digit numbers started with odd number when each digit are different. Please help...

$F i n d t h e s u m o f a l l t h r e e d i g i t n u m b e r s$ $s t a r t e d w i t h o d d n u m b e r w h e n e a c h d i g i t$ $a r e d i f f e r e n t .$ $P l e a s e h e l p . . .$

Question Number 188864 Answers: 0 Comments: 0

Question Number 188786 Answers: 1 Comments: 1

Question Number 188776 Answers: 3 Comments: 1

Prove that n^2 +3n+2 is divisible by 2 for any n∈Z

$Prove that n^{2} + 3 n + 2 is divisible by 2$ $for any n \in Z$

Question Number 188774 Answers: 1 Comments: 0

Question Number 188753 Answers: 1 Comments: 0

x^2 − y^2 = 2023 x, y ∈ N How many pair of (x, y)

$x^{2} - y^{2} = 2023 x, y \in N$ $H o w m a n y p a i r o f (x, y)$

Question Number 188704 Answers: 1 Comments: 0

Question Number 188660 Answers: 2 Comments: 0

solve x^4 +4x=1

$s o l v e x^{4} + 4 x = 1$

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