Question

Fin

Answer 1

what say the sin. law ? do you know ?

Answer 2

sin B = ?

Answer 3

\[\sin \angle=\frac{ opposite~ side }{ hypotenuse. }\]

Answer 4

\[\tan \angle =\frac{ opposite ~side }{ adjacent~side ~but~\not~hypotenuse. }\]

Answer 5

you are correct.

Answer 6

@sshayer

Answer 7

\[ \pi~radians=180~ degree\]

Answer 8

\[-\frac{ \pi }{ 3 }~radians=\frac{ -180 }{ 3 }=-60~degrees.\]

Answer 9

oh wow I get it thanks!

Answer 10

yw

Answer 11

because imaginary roots always occur in pairs.
so 2 i is also a zero off(x)
\[x= \pm 2i,\]
hence x+2i and x-2 i are factors of f(x)
\[\left( x+2 \iota \right)\left( x-2 \iota \right)=x^2-(2 \iota)^2=x^2-4 \iota ^2=x^2-4*-1=x^2+4\]
divide f(x) by x^2+4

\[x^2-9=x^2-3^2=(x+3)(x-3)\]
x+3=0 gives x=-3
x-3=0 gives x=3
all zeros are \[\pm 2 \iota ,\pm 3\]

Answer 12

@sshayer

Answer 13

@retirEEd

Answer 14

@sweetburger @zepdrix

Answer 15

\[\large\rm g(x)=-(x - 7)^2+1\]This is a quadratic, written in vertex form.
Do you know where the vertex is located?

Answer 16

@campbell_st

Answer 17

??

Answer 18

Why do you ask for help and then ignore me?

Answer 19

Im sorry I was offline!