2cos^2 60. tan^2 28. tan^2 62 = ??
Answers
Answered by
8
HELLO DEAR,
we know that:-
COS60°=1/2
2COS²60°×TAN²(90-72)×TAN²72°
=>2COS²60°×COT²72×1/COT ²72°
=> 2COS²60°×1
=> 2×(1/2)²
=>2×1/4
=> 1/2
I HOPE ITS HELP YOU DEAR,
THANKS
we know that:-
COS60°=1/2
2COS²60°×TAN²(90-72)×TAN²72°
=>2COS²60°×COT²72×1/COT ²72°
=> 2COS²60°×1
=> 2×(1/2)²
=>2×1/4
=> 1/2
I HOPE ITS HELP YOU DEAR,
THANKS
fdk:
ur welcome
thanks
just kidding thank u
hehe
i know
Similar questions
Math,
9 months ago
Social Sciences,
9 months ago
English,
9 months ago
India Languages,
1 year ago
Math,
1 year ago
Science,
1 year ago