Step-by-step explanation:
L.H.S
tanA * cosecA
=sinA/cosA * 1/sinA
now cancel sinA and sinA
then,
1/cosA
= secA
= RHS
hence proved
Answer:
32x-96
8 · 4x = 32x
8 · 12 = 96
2238 - 300 = 1938 ft is your answer
