tugas matematika 1

4
Matematika Nama : Barry Alkahfi Kelas : 1 EA Tugas 1 Carilahturunandarinilaifungsiberikut !!! 1. y=x 7 + 6 x 5 +12 x 3 2. y=x βˆ’5 +2 x βˆ’3 +3 x βˆ’7 3. y= √ x 2 + 3 √ x 7 4. y= 2 √ x + 6 √ x 3 5. y=x 2 . sin 2 x 6. y=( x 2 +1 ) . cos3 x 7. y=sin5 x. tan2 x 8. y=cos3 x. cot4 x 9. y= sin5 x cos7 x 10. y= cos6 x tan2 x Jawaban 1. y ' =7 x 6 +30 x 4 + 36 x 2

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Page 1: Tugas matematika 1

Matematika Nama : Barry Alkahfi

Kelas : 1 EA

Tugas 1

Carilahturunandarinilaifungsiberikut !!!

1. y=x7+6 x5+12x3

2. y=xβˆ’5+2 xβˆ’3+3 xβˆ’7

3. y=√x2+ 3√ x7

4. y= 2

√ x+ 6

√x3

5. y=x2 . sin2 x

6. y=( x2+1 ) .cos3 x

7. y=sin5 x . tan 2x

8. y=cos3 x .cot 4 x

9. y= sin 5 xcos7 x

10. y= cos6 xtan 2 x

Jawaban

1. y '=7 x6+30 x4+36 x2

2. y '=βˆ’5 xβˆ’6βˆ’6 xβˆ’4βˆ’21 xβˆ’8

Page 2: Tugas matematika 1

3. y=x22+x

73=x+x

73

y '=1+ 73x73βˆ’33=1+ 7

3x43

y '=1+ 733√x4

4. y= 2

x12

+ 6

x32

=2 xβˆ’12 +6 x

βˆ’32

y '=2.βˆ’12. x

βˆ’12

βˆ’22+6.βˆ’3

2. x

βˆ’32

βˆ’22

y 'βˆ’xβˆ’32 βˆ’9x

βˆ’52 =βˆ’1

x32

βˆ’ 9

x52

y '= βˆ’1

√ x3βˆ’ 9

√ x5

5. u=x2→u '=2xv=sin 2x→v '=2. cos xy '=u' . v+u . v '=2 x . sin 2x+x2.2 .cos xy '=2x .sin 2 x+2x2 .cos x

6. u=x2+1β†’u '=2xv=cos3 xβ†’ v '=βˆ’3.sin 3 xy '=u' . v+u . v '=2 x .cos3 x+(x2+1 ).βˆ’3. sin3 xy '=2x .cos 3x+(βˆ’3x2βˆ’3 ). sin 3 x

7. u=sin 5x→u '=5.cos 5xv=tan 2 x→v '=2. sec22 xy '=u' . v+u . v '=5. cos5 x . tan 2 x+sin 5x .2 . sec22 x

Page 3: Tugas matematika 1

y '=5. cos5 x . tan2 x+2. sin5 x . sec22x

8. u=cos3 xβ†’u'=βˆ’3. sin 3 xv=cot 4 xβ†’v '=βˆ’4.csc24 xy '=u' . v+u . v '=βˆ’3. sin 3x .cot 4 x+cos 3x .βˆ’4.csc24 xy '=βˆ’3. sin 3 x .cot 4 xβˆ’4. cos3 x .csc 24 x

9. u=sin 5xβ†’u '=5.cos 5xv=cos7 xβ†’v '=βˆ’7. sin7 x

y '=u' . vβˆ’u . v '

v2=5. cos5 x .cos7 xβˆ’sin5 x .βˆ’7. sin 7 xΒΏΒΏΒΏ

y '=5.cos 5x .cos7 x+7.sin 5 x .sin 7 xcos27x

10. u=cos6 xβ†’u'=βˆ’6. sin 6 xv=tan 2 xβ†’v '=2. sec22 x

y '=u' . vβˆ’u . v '

v2=βˆ’6. sin 6 x . tan 2xβˆ’cos 6 x .2. sec22x

ΒΏΒΏΒΏ

y '=βˆ’6. sin 6 x . tan 2 xβˆ’2. cos6 x . sec22 xtan22x