Question

4. In a right triangle ABC, right angle is at C, BC + CA - 23 cm and BC CA -7 cm then
find sin A and tan B.
5. 11. 2A and 2X are acute angles such that cosa
cosX then show that angleA = angleX
6. The altitude AD of a triangle ABC, in which angle A obtuse and AD=10 cm. If BD= 10 cm and CD=10/3cm , determine angleA.
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Answer 1

where is the polynomial