( cosec20 + cot40 = cote - cosects

Hi there!

~

cosec 20 -cot 40= 1/sin 20 - cos 40/sin 40

= (sin 40 -cos 40 sin20)/(sin 40 sin 20)

= 1/sin 40 ( 2 cos 20 - cos 40)

=1/sin20 ( 2 cos(60-40)-cos 40)

=1/sin40( 2 cos 60 cos 40 - 2 sin 60 -sin 40-cos 40)

Put the value of cos 60

= 1/sin 40 ( 2 sin 60 sin 40)

=root(3)

Hope this helped you!

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.