" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Tan²A - Sin²A = Tan²A x Sin²A
(y/x)² - (y/r)² = (y/x)² x (y/r)²
y²/x² - y²/r² = y²/x² (y²/r²)
(y²r² - y²x²)/(x²r²) = y⁴/(x²r²)
y²(r² - x²) = y⁴
r² - x² = y²
r² = x² + y² (rumus Phytagoras)