Math, asked by sudhanshusingh11739, 5 months ago

if cos A = 2/5 , find the value of 4 + 4tan^2 A

Answers

Answered by Anonymous

2

Step-by-step explanation:

ItsSamGupta

ANSWER
cosA=(
5
2
)
∴secA=(
2
5
)
4+4tan
2
A
=4(1+tan
2
A)
=4sec
2
A
=4×(
2
5
)
2
=25

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