Question

1. If cosA=4/5, then the value of tanA is
3/5
314
4/3
5/3​

Answer 1

Answer:

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Answer 2

Answer:

2nd option

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Step-by-step explanation:

cosA=4/5

1/cosA=secA=5/4

w.k.t. sec²A-tan²A=1

(5/4)²-tan²A=1

tan²A=(25/16)-1

tan²A=(25-16)/16

tan²A=9/16

tanA = 3/4