Question

the value of cos48 - sin42 is​

Answer 1

Answer:

Step-by-step explanation:

Value \:of \: cos48\degree-sin42\degree

=cos48\degree-sin(90-48\degree)

=cos48\degree-cos48\degree

/* We know that,

Sin(90°-A)=cosA */

=0

Therefore,

Value \:of \: cos48\degree-sin42\degree=0

•••♪

Step-by-step explanation:

Answer 2

Answer:

$\huge{\boxed{\rm{\red{answer=0}}}}$

Step-by-step explanation:

Given:-

Cos 48°- Sin42°

=>Cos (90°-42°)-Sin42°

we know that Cos (90°-A)=Sin A

=>Sin 42°-Sin42°

=>0

Cos 48°- Sin42°=0