Question

(B) If cosec 0 + cote = 1. Then prove that cos e =
k?-1
k²+1​

Answer 1

Answer:

hysteresis y6 to r wlc the same 3❌❌❌❌

Answer 2

Answer:

Given,

cosecθ+cotθ=k

sinθ

1

​

+

sinθ

cosθ

​

=k

sinθ

1+cosθ

​

=k

1+cosθ=ksinθ

Squaring both side,

(1+cosθ)

2

=k

2

sin

2

θ

(1+cosθ)

2

=k

2

(1−cos

2

θ)

(1+cosθ).(1+cosθ)=k

2

(1+cosθ)(1−cosθ)

1+cosθ=k

2

(1−cosθ)

1+cosθ=k

2

−k

2

cosθ

1+(1+k

2

)cosθ=k

2

(1+k

2

)cosθ=k

2

−1

cosθ=

k

2

+1

k

2

−1

​

Step-by-step explanation: