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Bess [88]
4 years ago
15

What is the product of z1 and z2 if

Mathematics
1 answer:
MaRussiya [10]4 years ago
8 0

Answer:

308[cos(45) + isin(45)]

Step-by-step explanation:

z1×z2:

Modulus: r1 × r2

= 7×44 = 308

Argument: theta1 + theta2

= -70 + 115 = 45

z1z2 = 308[cos(45) + isin(45)]

Or

z1z2 = 154sqrt(2) + (i)154sqrt(2)

sqrt: square root

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What is x and y if i don't know either
Crazy boy [7]

Answer:

Step-by-step explanation:

Be more specific, X can be a variable, or they can be coordinates, visa versa.

7 0
3 years ago
Please help. I do not know how to answer this question. :\
Zanzabum

Answer:

  (6 + m²)(6 + m²) . . . . . . . lower left selection

Step-by-step explanation:

When in doubt, you can multiply out the offered factorizations and see which one gives you the given expression.

___

A lot of math is about pattern matching. The given trinomial has first and last terms that are perfect squares. The first term is the square of 6. The last term is the square of m². The middle term is double the product of these two square roots: 2·(6m²) = 12m².

This pattern matches the special form of the square of a binomial:

  (a + b)² = a² + 2ab + b²

This special form is useful to commit to memory (at least while you're in math classes in school).

So, when you see 6² + 2·6·m² + (m²)², you can recognize that it is the square ...

  (6 + m²)²

When this is written out in the way the answer choices are written, it looks like ...

  (6 + m²)(6 + m²)

8 0
3 years ago
Let (12,-5) be a point on the terminal side of an angle 0. Find the values of sin e, cose, and tan
lord [1]

Answer:

Sin = -5/13

Cos = 12/13

Tan = -5/12

Step-by-step explanation:

5 0
3 years ago
Does the reciprocal come in the beginning or the end of the problem?
11111nata11111 [884]

Answer:

The reciprocal comes in the end of the problem.

Step-by-step explanation:

The reciprocal is the flipped number which is the opposite of another. It is commonly found at the end of a problem.

2/1 > 1/2

5 0
3 years ago
Determine if the two functions f and g are inverses of each other
Margarita [4]

Answer:

Yes.

Step-by-step explanation:

f(g(x))

f(\frac{x-12}{9})  

( I will have to replace all x's in 9x+12 with (\frac{x-12}{9})

9(\frac{x-12}{9})+12

(x-12)+12

x-12+12

x+(-12+12)

x+0

x

So the answer is yes.

5 0
4 years ago
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