Answer:
5,3
Step-by-step explanation:
5*3=15
15*3=45
Answer:
sec A= 1.01 and cot B =8.25
Step-by-step explanation:
Given :
sec A and cotB if a =8 and b=7
Now,
=
and

Therefore, answer will be sec A= 1.01 and cot B =8.25
Answer:
Height of the cliff = 13.66 m
Step-by-step explanation:
Let the height of the cliff is 'x' m and distance between the base of the cliff and the boat is 'y' m.
From right triangle AOC,
tan 30° = 

y =
------(1)
From right angle triangle BOC,
tan 45° = 

x = y - 10
y = x + 10 -------(2)
From equations (1) and (2),



x = 13.66 m
Therefore, height of the cliff is 13.66 m.