plz do this will mark as brainliest
Attachments:
Answers
Answered by
1
Answer:
Step-by-step explanation:
hope this would help you
Attachments:
Answered by
1
Answer:
L. H. S= √[(1+cos a) /(1-cos a) ]
= √[{(1+cos a) /(1-cos a)} x {(1+cos a) /(1+cos a) }]
=√[{(1+cos a) ^2}/(1-cos^2 a) ]
=√[{(1+cos a) ^2}/(sin^2 a) ]
=(1+cos a) /sin a
=(1/sin a) + (cos a/sin a)
= cosec a + cot a
= R. H. S
so, L. H. S=R.H.S.
Hence,this is proved.
Similar questions