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If sin theta is = 4/5 …

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If sin theta is = 4/5 find the value of 4 tan theta -5cos theta/ sec theta + 4cot theta

Posted by Arpit Gandhi 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years ago

sin theta=p/h=4/5 so we should find b from this equation

b=✓h²-p²

✓5²-4²

✓25-16

✓9=3

4tan theta - 5 cos theta by sec theta + 4 cot theta

4×p/b - 5×b/h divide by h/b + 4×b/p

4×4/3 - 5×3/5 divide by 5/3 + 4×3/4

16/3-3 by 5/3+ 3

7/3 by 14/3

3_3cancel

7/14=1/2

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CBSE > Class 10 > Mathematics