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3 years ago

Solve sin x + 2 sin x cos X = for 0°

Mathematics

1 answer:

solniwko [45]3 years ago

3 0

Answer:

Step-by-step explanation:

hello :

sin x + 2 sin x cosx = 0 equivalent to : sinx(1+2cosx) =0

sinx=0 means : general solution is : x= kπ....k in Z

1+2cosx=0 means : cosx= -1/2 general solution is : x= ±π/6+kπ...k in Z

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What are negative exponents<br>

iVinArrow [24]

Answer:

A negative exponent means how many times to divide by the number.

Step-by-step explanation:

Example: 8 to the power -1 = 1 ÷ 8 = 1/8 = 0.125.

7 0

3 years ago

Is this a domain or range?<br><br> please help :(

Novosadov [1.4K]

Step-by-step explanation:

it's a function.

the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.

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3 years ago

Sec^2 theta/tan theta = sec theta x csc theta

Andreas93 [3]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

• tan x = $\frac{sinx}{cosx}$

• sec x = $\frac{1}{cosx}$ , csc x = $\frac{1}{sinx}$

Consider the left side with x = Θ

$\frac{sec^2x}{tanx}$

= $\frac{1/cos^2x}{\frac{sinx}{cosx} }$

= $\frac{1}{cos^2x}$ × $\frac{cosx}{sinx}$

= $\frac{1}{cosxsinx}$

= $\frac{1}{cosx}$ × $\frac{1}{sinx}$

= secxcscx = right side ⇒ verified

7 0

3 years ago

Pls help me with these three problems asap. Write a number under the radical (square root symbol) that makes the statement true

blagie [28]

Answer:

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Step-by-step explanation:

6 0

3 years ago

3/m = 45/50 HELP, WILL GIVE BRAINLIST IF PERFECT ANSWER, its hard

Lana71 [14]

Answer:

m=10/3

Step-by-step explanation:

[3/(10/3)]3=9/10

(9/10)5=45/50

7 0

2 years ago