English, asked by khadarozman0, 18 hours ago

cost-2cosxsin 2x - 2sin'x cast​

Answers

Answered by aakankhyadha
0

Answer:

x→0

lim

cosx−cos

2

x

sin2x+2sin

2

x−2sinx

=

x→0

lim

cosx−cos

2

x

2sinxcosx+2−2cos

2

x−2sinx

=2⋅

x→0

lim

cosx−cos

2

x

sinxcosx−sinx−(cos

2

x−1)

=2.

x→0

lim

cosx−cos

2

x

sinx(cosx−1)−(cosx−1)(cosx+1)

=2.

x→0

lim

cosx(1−cosx)

(cosx−1)(sinx−cosx−1)

=2.

x→0

lim

cosx

1−sinx+cosx

=2×2=4

Similar questions