jika f(x)=x2 . cot x, maka f' (1/4phi) mohon dibantu ya makasihh
Matematika
pakkrw
Pertanyaan
jika f(x)=x2 . cot x, maka f' (1/4phi)
mohon dibantu ya makasihh
mohon dibantu ya makasihh
1 Jawaban
-
1. Jawaban Anonyme
jawab
pi//4 = 45
f(x)= x² cot x
f' (x) = 2x cot x - x² csc² x
f'(π/4) = 2(π/4) cot (π/4) - (π/4)² (csc π/4)²
f '(π/4) = π/2 (1) - (π/4)² (2/√2)²
= π/2 - (π/4)² (2)
= π/2 - π²/8