Question

1. If m = a sec A + b tan A and n = a tan A + b sec A,
prove that m2 – n2 = a2 – b2.​

Answer 1

Answer

watch tha image:

we know,. sec2A-tan2A=1

Answer 2

Answer:

see in the attachment I have proven it

Step-by-step explanation:

by simply substituting the m and n

by calculation

and simple trig formula

ie sec2a-tan2a=1

by these I got it

hope it is useful

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