In any triangle ABC if AB 2, BC = 4, CA-3 and D is mid-point of BC, then (1) `cos B =6/11` (2)...
533 views · Published 12 October 2018 · 2:26 · Indexed 26 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW In any triangle ABC if AB 2, BC = 4, CA-3 and D is mid-point of BC, then (1) `cos B =6/11` (2) `cos B =7/8` (3) `AD=2.4` (4) `AD^2=2.5`
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