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Hello,

   So some questions I want to check my answer: 

q1,

 

If (a,7) is y-intercept, then 5x+1=?? 

My solution: 

since (a,y) is y-intercept then a=0 (Well a is in the x-axis therefore x=0)

5(0)+1=1 

 

q2,

 

\(\sqrt{3}*tan(x)=sin(30)*cos(60)+sin(60)*cos(30)\)

Well on the right of the equation it is sin addition identity, sin(a+b) 

so 

sin(30+60)=sin(90)=1 

\(tan(x)=1/\sqrt{3}\)

x=tan^-1(1/sqrt(3))

 

Thank you in advance! 

 Dec 16, 2019
edited by Guest  Dec 16, 2019
edited by Guest  Dec 16, 2019
 #1
avatar+109750 
+1

Q1 -  correct  !!!

 

Q2  -  we can carry this one step more

 

arctan  ( 1/ √3)  =  x   =   30°

 

Good job  !!!

 

 

cool cool cool

 Dec 16, 2019
 #2
avatar
+1

smiley Thanks! 

Guest Dec 16, 2019

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