Question

com (90-450€
x-sen 30 xकॉस 90 प्लस 30 इक्वल टू माइनस 30 ​

Answer 1

Answer:

Please write clearly........

Answer 2

Explanation:

Solution :

L.H.S.=cosec(90∘+θ)+cot(450∘+θ)cosec(90∘−θ)+tan(180∘−θ)+tan(180∘+θ)+sec(180∘−θ)tan(360∘+θ)−sec(−θ)

=cosec(90∘+θ)+cot(360∘+90∘+θ)cosec(90∘−θ)+tan(180∘−θ)+tan(180∘+θ)+sec(180∘−θ)tan(360∘+θ)−sec(θ)

=cosec(90∘+θ)+cot(90∘+θ)cosec(90∘−θ)+tan(180∘−θ)+tan(180∘+θ)+sec(180∘−θ)tan(360∘+θ)−sec(θ)

=sec(θ)−tan(θ)sec(θ)−tan(θ)+tan(θ)−sec(θ)tan(θ)−sec(θ)

1+1=2=R.H.S.