Question

plssss fast with explanation plsss fast I will mark you as brainliest ​

Answer 1

Answer: sin 20

as sin 20/cos 70

= sin 20/cos(90-20)

=sin20/sin20

=1

mark as brainliest

Answer 2

Answer:

hey here is your answer

pls mark it as brainliest pls

Step-by-step explanation:

so according to complementary angle relation

cos(90-theta)=sin theta

so cos70=sin 20

so sin 20 and sum 20 would get eliminated

thus which gives 1

now we know that cot45=1

hence option d is ryt