Answer:
Step-by-step explanation:
Identities : -
cot = cos / sin
tan = sin / cos
( cot + tan ) sin = sec
LHS
= ( cot + tan ) sin
= ( ( cos / sin ) + ( sin / cos ) ) sin
= ( ( cos sin ) / sin ) + ( sin² / cos )
= cos + ( sin² / cos )
LCM = cos
= ( cos² / cos ) + ( sin² / cos )
= ( cos² + sin² ) / cos
Identity : -
cos² + sin² = 1
= 1 / cos
= sec
= RHS
Hence proved.
Answer:
f(n + 1) = f(n) + 0.75
Step-by-step explanation:
Answer: 112%
Step-by-step explanation:
Let x = the cost of the shoes
If the cost of the sweater is 12% more than the cost of the shoes, then 1.12x is the cost of the sweater.
To convert the 1.12x into a percentage, multiply 1.12 by 100
This gives you: 112%