Answer:
sec(4x) + C
Explanation:
original problem: ∫sec(4x)tan(x)dx
use integration by substitution (u-sub) by setting u = 4x
if u = 4x, then du/dx = 4 and du = 4dx (dx = du/4)
after substitution the integral is ∫sec(u)tan(u)(du/4)
move the 1/4 out of the integral by using the integral Constant rule to form 1/4∫sec(u)tan(u)du
the anti-derivative of sec(u)tan(u) is sec(u), memorize your trigonometric derivatives!!!!
after integration, we get sec(u)/4 + C , now plug u back into the equation
sec(4x) + C is the general solution
Answer: your answer is C- the subject line.
Explanation:
in a professional email, you should not use emoticons there as it looks unprofessional. so A is incorrect. the domain is who you are, and who the letter is from. B just doesn't make sense. C the subject line is correct. The subject line is the part that you should try to be brief but highly descriptive. Software that people commonly use in the workplace to make their lives easier. D the bcc is when you are wanting to copy someone else's writing in a word document or on paper. this option does not make sense either.
The FitnessGram pacer test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter pacer test will begin in 30 seconds. Line up at the start. The running speed starts slowly but gets faster each minute after you hear this signal bodeboop. A single lap should be completed every time you hear this sound. Ding Remember to run in a straight line and run as long as possible. The second time you fail to complete a lap after the sound, your test is over. The test will begin on the word start. On your mark. Get ready!!!! START!!!!
Answer:
I wish I could help but I sure I saw a question like this on khan academy. you can try there
