Question

8 TanA=15, then find SinA- CosA *

8/17

17/7

1/17

7/17

Other:


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Answer 1

Step-by-step explanation:

8tanA=15

tanA=15/8

We know that,tanA=opposite/adjacent

By Pythagoras theorem

$hypo ^{2} = 15 ^{2} + 8 ^{2}$

$hypo = \sqrt{225 + 64}$

$hypo = 17$

Therefore sinA=15/17,cosA=8/17

Hence,sinA-cosA=(15-8)/17

=7/17

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