Question

sec 0 + tan 0-1 1+sino
2. Prove that:
tan 0 - sec 0 +1 cos
(OR)
(1+sin A-COS A) 1-cos A
Prove that
(1+sin A+cos A 1+cos A​

Answer 1

Step-by-step explanation:

cos (1+sin)

(1+sin) + cos

= cos2 + (1+sin)2

cos*(1+sin)

= cos2 + 1 + 2sin + sin2

cos*(1+sin)

we know that cos2 + sin2 = 1

= (1+1+2sin)

cos*(1+sin)

= (2+2sin)

cos*(1+sin)

= 2(1+sin)

cos*(1+sin)

= 2

cos

= 2sec