-
Best of luck to the class of 2024 for their HSC exams. You got this! Let us know your thoughts on the HSC exams here -
YOU can help the next generation of students in the community! Share your trial papers and notes on our Notes & Resources page
Help with Trigonometric Functions (1 Viewer)
- Thread starter Metho NoX
- Start date
that's erh... 'obvious', it's something you should remember
some 'reasons':
1.) cotangent means complementary tangent, since (pi/2 - t) and t are complimentary (adds up to 90), you have that identity
2.)
tan (Pi/2 - t)
= sin(pi/2 - t)/cos(pi/2 -t)
= cos(t)/sin(t)
= cot(t)
some 'reasons':
1.) cotangent means complementary tangent, since (pi/2 - t) and t are complimentary (adds up to 90), you have that identity
2.)
tan (Pi/2 - t)
= sin(pi/2 - t)/cos(pi/2 -t)
= cos(t)/sin(t)
= cot(t)