3 years ago

Which is the correct identity for cos(π/2-θ) ? A. cos θ B. sin θ C. sec θ D. csc θ

Mathematics

2 answers:

icang [17]3 years ago

7 0

I believe the answer is D. I’m terribly sorry if I got it wrong

ella [17]3 years ago

6 0

Answer:

B. sin

Step-by-step explanation:

sin A is equivalent to cos(pi/2-a)

You might be interested in

You are saving $3.75 each week to buy a DVD that costs $26.79, including tax. For how many weeks will you need to save

MA_775_DIABLO [31]

Answer:

8 weeks

Step-by-step explanation:

26.79/3.75 = 7.144

To get the full amount you need to round up to the next highest week.

5 0

3 years ago

Read 2 more answers

Write the expression in the form a+bi.<br> √ -4 - √144

Lesechka [4]

Answer:

-12 + 2i

Step-by-step explanation:

$\sqrt{ - 4} - \sqrt{144} \\ \\ = \sqrt{ - 1 \times 4} - \sqrt{144} \\ \\ = \sqrt{ - 1} \times \sqrt{4} - \sqrt{144} \\ \\ = i \times 2 - 12 \\ \\ = - 12 + 2i \\ \implies \: a + bi$

8 0

3 years ago

Which of the following is not a function

densk [106]

Answer:

2nd graph

Step-by-step explanation:

no x's are doubled

6 0

3 years ago

Read 2 more answers

One-Third The Difference Between 2/3 And 1/2

Tresset [83]

Answer:

1/18

Step-by-step explanation:

2/3-1/2=1/6

1/3 x 1/6=1/18

8 0

3 years ago

A rectangle has a perimeter of 25 meters. If the lengths of the sides of the rectangle are multiplied by 7 to make a new rectang

Rus_ich [418]

Answer:

i answered

Step-by-step explanation:

i just need points so i can ask questions sorry

4 0

3 years ago

Read 2 more answers