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Nutka1998 [239]

3 years ago

12

Kgms^-1 ÷ m× (ms^-1)^2 Can u simplify this

1 answer:

Ymorist [56]3 years ago

7 0

Answer:

(kgm^2) / (s^3)

Step-by-step explanation:

Comment if you want steps.

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65yards and 2feet equall hiw many feet

Black_prince [1.1K]

We know that 1 yard equals 3 feet, therefore, we have:
65(3) + 2
= 195 + 2
= 197
therefore, 65 yards and 2 feet equals 197 feet

5 0

3 years ago

Read 2 more answers

If tanA=a <br>then find sin4A-2sin2A/ sin4A+2sin2A

anygoal [31]

Answer:

The value of the given expression is

$\frac{sin4A-2sin2A}{sin4A+2sin2A}=-a^2$

Step by step Explanation:

Given that $tanA=a$

To find the value of $\frac{sin4A-2sin2A}{sin4A+2sin2A}$

Let us find the value of the expression :

$\frac{sin4A-2sin2A}{sin4A+2sin2A}=\frac{2cos2Asin2A-2sin2A}{2cos2Asin2A+2sin2A}$ ( by using the formula $sin2A=2cosAsinA$ here A=2A)

$=\frac{2sin2A(cos2A-1)}{2sin2A(cos2A+1)}$

$=\frac{(cos2A-1)}{(cos2A+1)}$

$=\frac{(-(1-cos2A))}{(1+cos2A)}$ (using $sin^2A+cos^2A=1$ here A=2A)

$=\frac{-(sin^2A+cos^2A-(cos^2A-sin^2A))}{sin^2A+cos^2A+(cos^2A-sin^2A)}$ (using $cos2A=cos^2A-sin^2A$ here A=2A)

$=\frac{-(sin^2A+cos^2A-cos^2A+sin^2A)}{sin^2A+cos^2A+(cos^2A-sin^2A)}$

$=\frac{-(sin^2A+sin^2A)}{cos^2A+cos^2A}$

$=\frac{-2sin^2A}{2cos^2A}$

$=-\frac{sin^2A}{cos^2A}$

$=-tan^2A$ ( using $tanA=\frac{sinA}{cosA}$ here A=2A )

$=-a^2$ (since tanA=a given )

Therefore $\frac{sin4A-2sin2A}{sin4A+2sin2A}=-a^2$

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3 years ago

I need help ASAP!!!!!!!!!!!!!!!!!!!!

Mariulka [41]

Answer:

I think its the last one

Step-by-step explanation:

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3 years ago

Help please!! Show work if possible!

Natasha2012 [34]

Answer:

Please see the attached pictures for full solution.

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3 years ago

Balance the following redox reaction by ion electron method.<br><br>I2+ HNO3 = HI03+ NO2+ H20

Ad libitum [116K]

Answer:

BRO I DONT KNOW SORY I NEED POINTS

Step-by-step explanation:

7 0

3 years ago