✴Plz solve it
Question in attachment
Attachments:
Anonymous:
Here, i use x instead of theta..
okay thnx
fyn.
Allah Hafiz!
Answers
Answered by
6
_______________________________
L.H.S
{Cosx × Cos x}+ { 1 - Sin x }²
___________________
Cos x × { 1 - Sin x }
=>
Cos²x + Sin²x + 1 -2Sinx
____________________
Cos x { 1 - Sin x }
=>
{ 1 + 1 - 2Sin x }
___________
Cos x { 1 - Sin x }
=>
2 { 1 - Sin x }
__________
Cos x × { 1 - Sin x }
=>
2/Cos x
2 Sec x ,. Hence proved.
where x = theta.
L.H.S
{Cosx × Cos x}+ { 1 - Sin x }²
___________________
Cos x × { 1 - Sin x }
=>
Cos²x + Sin²x + 1 -2Sinx
____________________
Cos x { 1 - Sin x }
=>
{ 1 + 1 - 2Sin x }
___________
Cos x { 1 - Sin x }
=>
2 { 1 - Sin x }
__________
Cos x × { 1 - Sin x }
=>
2/Cos x
2 Sec x ,. Hence proved.
where x = theta.
Similar questions