Evaluate cos[2arctan(2)] Need step by

I need help with I just can't seem to get anywhere. this is as far as I have got:Solve for b arcsin(b)+ 2arctan(b)=pi
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2. asked by Jen
3. 708 views
Evaluate cos[2arctan(2)]Need step by step for this one. Thanks
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2. asked by Matg
3. 370 views
Evaluate the integral: the integral of [5e^(2t)]/[1+4e^(2t)]dt. I used u sub and let u=e^2t and got 5/2arctan(e^2t)+C. But this
1. 1 answer
2. asked by Kristina
3. 418 views
Evaluate the integral:the integral of [5e^(2t)]/[1+4e^(2t)]dt. I used u sub and let u=e^2t and got 5/2arctan(e^2t)+C. But this
1. 0 answers
2. asked by Adam
3. 1,008 views
Evaluate the integral:the integral of [5e^(2t)]/[1+4e^(2t)]dt. I used u sub and let u=e^2t and got 5/2arctan(e^2t)+C. But this
1. 0 answers
2. asked by Adam
3. 445 views
Missy and Bill were asked to evaluate the expression -3(-2 + 5). Their work is shown below.Missy’s work! Bill’s work
1. 11 answers
2. 21 views
Shelley tried to evaluate an expression. Here is her work:2(3)3–(8+92) = 2(3)3–8+18 Step 1 = 2(27)–8+18 Step 2 = 54–8+18
1. 1 answer
2. asked by Conexus baby
3. 542 views
How do i findcos(2arctan(7/24)) Thanks.
1. 1 answer
2. asked by Jen
3. 895 views
Jasmine evaluated a function.Function: f(x) = 3 + √x-11 Step 1: f(60) = 3 + √60-11 Step 2: f(60) = 3 + √71 Step 3: f(60) =
1. 5 answers
2. 10 views
Raul tried to evaluate an expression step by step.= = = 3−(−5)−7 3+5−7 3+2 5 Step 1 Step 2 Step 3
1. 2 answers
2. asked by yusra
3. 454 views