Question

(cos 47°/sin 43°)² + (sin73°/cos18°) - 2 cos​

Answer 1

i know u cant inder stand

Answer:

try to understand iam srry

Step-by-step explanation:

( c o s 47 ° s i n 43 ° ) 2 + ( s i n 72 ° c o s 18 ° ) 2 − 2 c o s 2 45 ° (cos47°sin43°)2+(sin72°cos18°)2−2cos245° (ii)  c o s 70 ° s i n 20 ° + c o s 59 ° s i n 31 ° + c o s θ s i n ( 90 ° − θ ) cos70°sin20°+cos59°sin31°+cosθsin(90°−θ) - 8cos2 60° (iii) tan 15° tan 30° tan 45° tan 60° tan 75° (iv)  c o t θ t a n ( 90 ° − θ ) cotθtan(90°−θ) +  c o s ( 90 ° − θ ) t a n θ s e c ( 90 ° − θ ) s i n ( 90 ° − θ ) c o t ( 90 ° − θ ) c o s e c ( 90 ° − θ )Read more on Sarthaks.com - https://www.sarthaks.com/974247/find-the-value-of-the-following-i-cos-47-sin-43-2-sin-72-cos-18-2-2-cos-2-45

Answer 2

Answer:

1

Step-by-step explanation:

hope it's helpful!!!!!!!!!!!