Maths A level question

JJ5672

Please help !!I’m stuck on 11 and 12 part A. Thank you

(edited 5 months ago)

Reply 1

Muttley79

Original post by JJ5672

Please help !!I’m stuck on 11 and 12 part A. Thank you

Please post what you've tried as per forum rules.

Reply 2

yzven

Original post by JJ5672

Please help !!I’m stuck on 11 and 12 part A. Thank you

for 12a just expand out sin(x+70) and cos(x+20) then recall sinx=cos(90-x) and vice versa to convert for same arguments then divide through by cos I presume to create tan expressions

Reply 3

Muttley79

Original post by yzven

for 12a just expand out sin(x+70) and cos(x+20) then recall sinx=cos(90-x) and vice versa to convert for same arguments then divide through by cos I presume to create tan expressions