5) What is the value of ? :- 2 Cos² theta(1 + tan²theta).
Answers
Answered by
1
Let's theta be 45°
so; cos45°=1/√2
tan45°=1
substitute the value in 2 Cos² theta(1 + tan²theta).
=2×(1/√2)² ×(1+1)
=2×1/2 ×(2)
2/2 ×2
1 ×2
final answer= 2
hope you understood ☺️☺️
Answered by
2
Answer:
Given, 7sinA=24cosA
⇒
cosA
sinA
=
7
24
⇒tanA=
7
24
⇒tanA=
B
P
Using Pythagoras theorem, we have
H
2
=P
2
+B
2
H
2
=24
2
+7
2
H
2
=625
H=25
Now, 14tanA+25cosA−7secA
= 14(
B
P
)+25(
H
B
)−7(
B
H
)
= 14(
7
24
)+25(
25
7
)−7(
7
25
)
= 48+7−25
= 30
Step-by-step explanation:
I hope that is helpful for u
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