If tan 2A = cot (A - 18), where 2A is an acute angle. Find the value of A.
Rajasmita1:
I think ans is 78°
Answers
Answered by
17
HEYA!!!!
Here is your answer :
__________________________
Given,
Tan 2A = cot ( A - 18)
Cot ( 90 - 2A ) = cot ( A - 18)
90 - 2A = A - 18
90 + 18 = A + 2A
108 = 3A
A = 108/3
A = 36
HOPE THIS HELPS U.
Here is your answer :
__________________________
Given,
Tan 2A = cot ( A - 18)
Cot ( 90 - 2A ) = cot ( A - 18)
90 - 2A = A - 18
90 + 18 = A + 2A
108 = 3A
A = 108/3
A = 36
HOPE THIS HELPS U.
thank you
most welcome
Answered by
7
Hey friend...
tan 2A = cot (A-18°)
cot (90°- 2A) = cot (A-18°)
90°-2A = A-18°
90+18° = A +2A
108° = 3A
A = 36°
so, the value of A is 36°
THANKS
HOPE IT HELPS U☆☆☆
tan 2A = cot (A-18°)
cot (90°- 2A) = cot (A-18°)
90°-2A = A-18°
90+18° = A +2A
108° = 3A
A = 36°
so, the value of A is 36°
THANKS
HOPE IT HELPS U☆☆☆
thank you
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