please answer the 4to 7
Attachments:
Answers
Answered by
1
sin(A+B)=1
a+B=90
cos(a-b)=root3÷2
a-b=30
a+B=90
a-b=30
=a=60
B=30
a+B=90
cos(a-b)=root3÷2
a-b=30
a+B=90
a-b=30
=a=60
B=30
Similar questions