Step-by-step explanation:
sin4Acosec2A+cos4Asec2A=sin2Asin4A+cos2Acos4A=sin2A+cos2A=1
Answer:
4.50x=y
y=x-3
Step-by-step explanation
12£ and 42£
gethin gets 2/9
David gets 7/9
total money is equal to 54
Gethin gets 54x 2/9=12
David gets 54x7/9=42