If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin (a+b)

Solution

it is given that ,a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5

Used the Identity

sin²a+cos²a=1

sin (a+b)=sin a cos b+cos a sin b

see below

step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right

no

explanation:

you can be freinds, and people but not follow people.