Question

if cosecФ=√10, then secФ is equal to::::
(Ф=thita)

Answer 1

Answer:

310−−√

B

10−−√3

C

110−−√

D

210−−√

Answer

B

Solution

cosecθ=ACBC=10−−√1=10−−√xx⇒AC=10−−√xandBC=x.

∴AB2=AC2−BC2=(10−−√x)2−(x2)=10x2−x2=9x2

⇒AB=9x2−−−√=3x.

∴secθ=ACAB=10−−√x3x=10−−√3.

Step-by-step explanation: