Question

if sin9A=cosAthen what is the value of tan5A

Answer 1

Answer:

Before answering this question, I want to add a condition which is 9A is less than 90 degree

Then, you should be familiar with the following

cos(60)=sin(30) =1/2

we can rewrite it as cos(90–30) = sin (30)

where 90–30+30 =90

So, your question is

we can put the following formula

9A+A=90 So

A=90/10 =9 degrees

then,

5A= 5*9 =45

cot(45) =1/tan(45) = 1

Answer 2

Step-by-step explanation:

total resistance when resistors are in triangle patter tell which are in series and which in parallel