2 years ago

Is square root 1-cos^2theta=-sintheta true? if so, in which quadrants does angle theta terminate?

Mathematics

1 answer:

oksano4ka [1.4K]2 years ago

4 0

Yes it is true:

(1 - cos^2 x) = sin^2 x Sqr.(1 - cos^2 x) = sin x and (-sinx) True, since sin x negative. Also, x terminates in quadrant 3 and 4. Hope this is helpful

You might be interested in

Below are five number sequences.

oksian1 [2.3K]

Answer:

Step-by-step explanation:

3 0

3 years ago

Leela sold her necklace for profit of 7% if she sell it for 294 more dollar she would have got 10% profit what is cost price

4vir4ik [10]

So, 10%-7%=3%=$294
$294/3%=$9800
Answer: The cost price of the necklace is $9800.

7 0

3 years ago

What are the Factors of 2,3,4,5

Dominik [7]

Answer:for 5

Step-by-step explanation:1,5

7 0

3 years ago

There is a quadrilateral MNPQ in which side MN is congruent to side PQ and side NP is parallel to side MQ. The diagonal MP and t

8_murik_8 [283]

Answer: QN = 12

Step-by-step explanation: This quadrilateral is a paralelogram because its 2 opposite sides (NP and MQ) are parallel and the other 2 (MN and PQ) are congruent.

In paralelogram, diagonals bisect each other, which means QR = RN.

If QR = RN:

QR = 6

Then,

QN = QR + RN

QN = 6 + 6

QN = 12

The diagonal QN of quadrilateral MNPQ is QN = 12.

5 0

3 years ago

It says write an equation of the line shown and the line goes through points 4,3 and 1,-3

RUDIKE [14]

Slope of the line;
slope= $\frac{change in y}{change in x}$
Slope= $\frac{3--3}{4-1}$
Slope,m = $\frac{6}{3} =2$
y=mx+c
y=2x+c
Replacing for x and y using point (4,3)
3=2(4)+c
3=8+c
c=3-8
c=-5
y=2x-5

4 0

3 years ago