All categories

3 years ago

Cos²x + sin^2x/cscx-cot^2x

Mathematics

1 answer:

Anna [14]3 years ago

5 0

Answer:

Step-by-step explanation:

I am assuming you want to simplify this.

cos^2 x + sin^2 x = 1 and

csc^2 x = 1 + cot^2 x so csc^2x - cot^2 x = 1

So the answer is 1/1 = 1.

You might be interested in

5/x+3 take away 1/x-2 equals to 1. solve two possible answers for x

satela [25.4K]

Answer:

<h3>Solution:-</h3>

First write the given equation

$\qquad{:}\longrightarrow$ $\sf \dfrac {5}{x+3}-\dfrac{1}{x-2}=1$

$\qquad{:}\longrightarrow$ $\sf \dfrac {5 (x-2)-1 (x+3)}{(x+3)(x-2)}=1$

$\qquad{:}\longrightarrow$ $\sf \dfrac {5x-10-x }{x^2-6x-6} =1$

use cross multiplication method

$\qquad{:}\longrightarrow$ $\sf 5x-x-10=x^2-6x-6$

$\qquad{:}\longrightarrow$ $\sf x^2-6x-6=4x-10$

$\qquad{:}\longrightarrow$ $\sf x^2-6x-4x-6+10=0$

$\qquad{:}\longrightarrow$ $\sf x^2-10x+4=0$

use quadratic formula

$\qquad{:}\longrightarrow$ $\sf x=\dfrac {-b\underline{+}\sqrt {b^2-4ac}}{2a}$

$\qquad{:}\longrightarrow$ $\sf x=\dfrac {10\underline{+}\sqrt {(-10)^2-4×1×4}}{2×1}$

$\qquad{:}\longrightarrow$ $\sf x=\dfrac {10\underline{+}\sqrt{100-16}}{2}$

$\qquad{:}\longrightarrow$ $\sf x=\dfrac {10\underline{+}\sqrt {84}}{2}$

$\qquad{:}\longrightarrow$ $\sf x=\dfrac {10+\sqrt {84}}{2}\quad or\quad x=\dfrac {10-\sqrt{84}}{2}$

8 0

3 years ago

Solve the inequality for x 19>x-5 Simplify your answer as much as possible.

Stolb23 [73]

19>x-5

Add 5 on each side giving you
19+5>x
24>x

x<24

Hope this helps!!

7 0

4 years ago

Solve 2x+y=7 for y y=[]

VMariaS [17]

Answer:

Step-by-step explanation:

ok so y= 7-2x just need to move 2x to the other side

3 0

3 years ago

Read 2 more answers

A set of bivariate data was used to create a least-squares regression line. Which of the following is minimized by the line? The

Akimi4 [234]

Answer:

The sum of the squared residuals

Step-by-step explanation:

If you sum the residuals, you would get 0

if you sum of the absolute values of the residuals you wouldn't be doing "least-squares regression"

The influence of outliers D The slope is another metric that has nothing to do in creating the regression line

8 0

4 years ago

What is 1/5 times 7/20

djverab [1.8K]

$\dfrac{1}{5} \times \dfrac{7}{20} = \dfrac{7}{100}$

5 0

3 years ago