# Trig Proofs Lessons

00:09:12
• YourMathGal
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### Trig Proof 1

• Shows steps for proving (or verifying) Trigonometric Identities;
00:10:49

### Trig Proof 2

• Shows steps for proving (or verifying) Trigonometric Identities;
00:08:59

### Trig Proof 3

• Shows steps for proving (or verifying) Trigonometric Identities;
00:07:40

### Trig Proof 4

• Shows steps for proving (or verifying) Trigonometric Identities;
00:04:51

### Trig Proof 5

• We verify a Trig identity by using the basic identities and the identity for the cosine of a sum ...
00:07:30

### Trig Proof 6

• We verify a Trig identity by using the basic identities and the identity for the cosine of a sum ...
00:04:27

### Trig Proof 7

• We verify a Trig identity by using the basic identities and the identity for the cosine of a sum ...
00:05:53

### Trig Proof 8

• We verify a Trig identity by using the basic identities and the identity for the cosine of a sum ...
00:04:14

### Trig Proof 9

• Two more trig proofs shown and explained.