5 tan² A – 5 sec² A + 1 is equal to
Answers
= 5 tan² A–5 sec² A + 1
= -5 ( sec² A – tan² A )
= -5 ( 1 ) + 1
= -5+1
= -4
hence, answer is -4.
5 tan² A – 5 sec² A + 1 = - 4
Given : 5 tan² A – 5 sec² A + 1
To find : The value
Formula : sec² A – tan² A = 1
Solution :
Step 1 of 2 :
Write down the given expression
The given expression is
5 tan² A – 5 sec² A + 1
Step 2 of 2 :
Simplify the given expression
5 tan² A – 5 sec² A + 1
= - 5 ( sec² A – tan² A ) + 1
= ( - 5 × 1 ) + 1
= - 5 + 1
= - 4
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