I really dont know how to type this out so I will just add a picture.

sin(theta)=root 2/2(answer choice 3)

tan(theta)=1

Step-by-step explanation:

note that cos 45 = sqrt(2)/2

therefore sin is also root (2) / 2

tan is 1.

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

i think is 3 and 6. this took me 10 min to think.hope to and hope that my answer is brainliest.(follow me )