The answer is multiplication
Answer:
x = - 8
Step-by-step explanation:
4x - 9 + 3x = 8x - 1
7x - 9 = 8x - 1
7x - 8x - 9 = 8x - 8x - 1
- x - 9 = - 1
- x - 9 + 9 = - 1 + 9
- x = 8
- x ÷ - 1 = 8 ÷ - 1
x = - 8
Answer:
a = 16
Step-by-step explanation:
6 = a/4 + 2
Switch sides.
a/4 + 2 = 6
Subtract 2 from both sides.
a/4 = 4
Multiply both sides by 4.
a = 16
Answer:
step by step below
Step-by-step explanation:
(cscA+1).(1-sinA)=cosA.cotA
(1/sinA +1).(1-sinA) = 1/sinA*(1 - sinA) + 1*(1-sinA)
= 1/sinA - 1 + 1 - sinA
= 1/sinA - sinA
= (1 - sin²A) / sinA
=cos²A / sinA
= cosA*cosA / sinA
=cosA*cotA
