Question

177. If cos A = 0.5 and cos B =
; find the
tan A-tan B
value of :
1+tan Atan B​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

sin² A=1-cos²A

sin² A=1-0.5=0.5

sinA=sqrt(0.5)=0.707

Sin²B = 1- cos B (cosB value is not showing i think you mistakenly not entered or in my side problem)

so see the process....

sin B you will get here same like sin A

then,

tan A- tanB=sinA/cos A -sin B/cosB

=0.707/0.5-sinB/cosB