HaPow2743 HaPow2743

08-09-2020
Mathematics

contestada

Which expression is equivalent to cos (70°)?

Cos ^-1 (20)

Sin ^-1 (20)

Cos (20)

Sin (20)

Respuesta :

jimrgrant1 jimrgrant1

08-09-2020

Answer:

sin20°

Step-by-step explanation:

Using the cofunction identity

cosx = sin(90 - x) , thus

cos70° = sin(90 - 70)° = sin20°

Answer Link

Otras preguntas

In analyzing statistical data, which do you think is more likely: a correlation coefficient of 0.9 or a correlation coefficient of 1.0? Explain.

Wegener observed evidence of the similarity between the type and age of rocks at the edges of continents. Which of the following best describes the reason for c

Use the distributive property to find the equivalent expression. 6(2 + 5t) = ?+?t

My fifth time asking this, but can someone please help me with these four????

4 × (1,351 - 381) Which of the following is true about the expression above? A. The given expression is 4 less than (1,351 - 381). B. The given expression is

I NEED HELP!! I just graduated, and I need help with this question. (DON'T ANSWER JUST FOR POINTS) If you answer this correctly, I'll mark you brainliest!

Q and R are independent events. P(Q)=12/17 and P(R)=3/8 Find P(Q and R). Write your answer in simplest form.

Another central idea of the selection is a belief that God

South asia is bound on the north by the _______ mountains.

A colony given to an individual landowner who was responsible for appointing a governor is called a