Question

anyone please solve sec^2+ 4 sec θ − 5 = 0

Answer 1

Answer:

Explanation:

sec

2

x

=

1

cos

2

x

=

4

cos

2

x

=

1

4

cos

x

=

±

1

2

a.

cos

x

=

1

2

-->

x

=

±

π

3

x

=

5

π

3

is co-terminal to

x

=

−

π

3

b.

cos

x

=

−

1

2

-->

x

=

±

2

π

3

x

=

4

π

3

is co-terminal to

x

=

−

2

π

3

Answers for

(

0

,

2

π

)

:

π

3

,

2

π

3

,

4

π

3

,

5

π

3

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