2 years ago

Verify the identity.

1 answer:

3 0

Answer:

from left hand side:tan^2/secx=(,sin^2x/cos^2x)/(1/cosx)=sin^2x/cosx=sinx×sinx/cosx=sinx.tanx=right hand side.verified.

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stiks02 [169]

Answer:

3.6 hours

Step-by-step explanation:

Blake can do work in hours = 9

Blake can do a part of work in 1 hour = $\frac{1}{9}$

Ned can paint the same room in six hours.

Ned can do a part of work in 1 hour = $\frac{1}{6}$

They can do a part of work together in 1 hour = $\frac{1}{9}+\frac{1}{6}$

= $\frac{5}{18}$

Now they can do $\frac{5}{18}$ part of work in hour = 1

So, they can do whole work in hours = $\frac{1}{\frac{5}{18}}$

= $3.6$

Hence it will take 3.6 hours to paint the room if they work together.

6 0

3 years ago

KiRa [710]

I've answered this before, but only partially. I'm not sure about the second part, but I think the first one is 10

4 0

3 years ago

Marysya12 [62]

8x???? I could be wrong

Explained

5 0

3 years ago

Lynna [10]

Answer:

1/9

Step-by-step explanation:

7 0

2 years ago

Vedmedyk [2.9K]

Your answer should be 3.75

7 0

3 years ago