Question

Find the value cot(sin-1 3/5+sin-1 4/5)

Answer 1

Answer:

jrbrhrbd dhr. rhr. dj r. di. rinr. t jr t

Answer 2

Step-by-step explanation:

Cot { Sin-1(3/5) + Sin-1(4/5) }

Cot { tan-1(3/4) + tan-1(4/3) }

Cot { tan-1 [(3/4 + 4/3)/1 - (3/4)*(4/3)] }

Cot { tan-1 [(25/12)/1 - 0 }

Cot { tan-1(25/12)}

Cot { Cot-1(12/25) }

= 12/25