Question

prove that



cos 36 X sec Q =1.... please tell​

Answer 1

Answer:

Step-by-step explanation:

Taking the L.H.S,

(1 – cos2 A) cosec2 A

= (sin2 A) cosec2 A [∵ sin2 A + cos2 A = 1 ⇒1 – sin2 A = cos2 A]

= 12

= 1 = R.H.S

– Hence Proved

Answer 2

To Prove

cos 36 × sec Q

Solution

cos 36 × sec 36

we know that

sec theta = 1

cos theta

cos 36 × 1 = 1

cos 36

so Q = 36