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R.R. Jha
R.R. Jha, Tutor
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Experience:  B.Tech
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I'd be glad to help in physics. Please send your question. You may put your question, and figures, in a word document, upload the file at and post its download link here.

Customer: replied 3 years ago.
Evaluate the sine cosine and tangent of 1.)-804degrees 2.)3pi/4 3.)10pi/3 4.)10pi/3
sin(-804 degrees) = -0.9945
cos(-804 degrees) = 0.1045
tan(-804 degrees) = -9.5144

sin(3*pi/4) = 0.7071
cos(3*pi/4) = -0.7071
tan(3*pi/4) = -1

sin(10*pi/3) = -0.866
cos(10*pi/3) = -0.5
tan(10*pi/3) = 1.7321

4) It's same as part (3). Let me know if it's different.

Please rate the answer.

Customer: replied 3 years ago.
Can you show your work without using a calculator
For part(1), we need a calculator.

In part(2), we've 3pi/4 = pi - pi/4. So,

sin(3pi/4) = sin(pi - pi/4) = sin(pi/4) = 1/sqrt(2) = 0.7071
cos(3pi/4) = cos(pi - pi/4) = -cos(pi/4) = -1/sqrt(2) = -0.7071
tan(3pi/4) = tan(pi - pi/4) = -tan(pi/4) = -1

In part(3) we've 10pi/3 = 3pi + pi/3. So,

sin(10pi/3) = sin(3pi + pi/3) = -sin(pi/3) = -sqrt(3) /2 = -0.866
cos(10pi/3) = cos(3pi + pi/3) = -cos(pi/3) = -1/2 = -0.5
tan(10pi/3) = tan(3pi + pi/3) = tan(pi/3) = sqrt(3) = 1.7321

Hope that helps. Let me know if you still have any question about it.

Please rate the answer.
Customer: replied 3 years ago.
I have a few more questions of that's ok
Ok, please send all your questions at once, so that we may know in advance the volume and complexity of the question.
Customer: replied 3 years ago.
May I send you a picture
Sure. You may put your question, and figures, in a word document, upload the file at and post its download link here.
Customer: replied 3 years ago.
Can I text you a picture
Not sure. You may try or to upload it, or you may use the paper-clip icon in reply toolbar here. It's next to right of the yellow smiley icon at the top of reply box.
Customer: replied 3 years ago.
What about an email
Sorry, site rules prevent us from sharing email id. Try, it's really easy to use.
Customer: replied 3 years ago.
But I took a picture from my iPhone so i don't know how I can send that to you, any ideas
I guess you'd able to use on your iPhone.
Just visit
Click 'Browse' button to pop up a window.
Browse and select the file to send, then click Open to close the window.
Click 'Upload File'
After upload finishes, inside 'download link' box, note 6-digit number. Just post that number here.

Customer: replied 3 years ago.
Here is the link
Their is also one other picture the backside of the worksheet here is the link for that
Received it. Could you please split the question as it's a long one? You may then create new question for each part. Just add 'RRJha' at the start of your new question and I'll receive it.
Customer: replied 3 years ago.
You have until tommorow morning to finish it sir
These are a lot of questions. Could you break them in two separate questions? If creating a new questions, just add 'RRJha' at the start to send them directly to me.

Customer: replied 3 years ago.
Did you solve any of the questions
I am waiting for your response to my previous query. Let me know and I'd start working on it soon after.
Customer: replied 3 years ago.
I am not sure how to do that
I'll post two answers here. First answer would have solution to question 1 to 15. After you rate that answer, I'll work out question 15 to 29 and post second answer. You'd rate the second answer again paying same amount. Let me know if that's clear and you agree.

Customer: replied 3 years ago.
Yes that's fine
Ok, I'll post the first one soon.


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Customer: replied 3 years ago.
When do you think you will be finished

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