Question

(√1-sin^2 200° ) sec 200° =​

Answer 1

Answer:(√1-sin^2100)sec100= can be written as:

√(cos^2100)sec100 = k (let)

k = cos100*sec100 = 1

.i.e. k = + 1

 

and

-cos100*sec100 = k

k= -1

 

Now since sec100 is negative and thus -ve is multiplied with positive will always give a negative one.

Hence k = +! iss being neglected.

answer is k = -1.

Step-by-step explanation: