Question

in a right angle triangle ABC angle at B=90 degrees, sinA=5/13 then find cosAcosB-sinAsinB​

Answer 1

Answer:

I hope it will help you

Answer 2

Answer:

CONCEPT OF VALUES OF MAJOR ANGLES' TRIGONOMETRIC RATIOS AND PYTHAGORAS THEOREM AND SQUARE ROOTS AND FORMULAS OF ALL RATIOS.

Step-by-step explanation:

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